Home / 64,650.61-96,975.93-20,280.83

Finding the Fourth Proportional to 64,650.61, 96,975.93 and 20,280.83

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Solution

The fourth proportional to 64,650.61, 96,975.93 and 20,280.83 is: 30,421.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,650.61 : 96,975.93 = 20,280.83 : x
  2. Step 2: Convert to fraction form
    64,650.61/96,975.93 = 20,280.83/x
  3. Step 3: Cross multiply
    64,650.61x = 96,975.93 × 20,280.83
  4. Step 4: Simplify right side
    64,650.61x = 1,966,752,487.08
  5. Step 5: Solve for x
    x = 1,966,752,487.08/64,650.61
  6. Step 6: Final answer
    x = 30,421.25

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.