Home / 64,650.12-96,975.20-20,280.76

Finding the Fourth Proportional to 64,650.12, 96,975.20 and 20,280.76

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Solution

The fourth proportional to 64,650.12, 96,975.20 and 20,280.76 is: 30,421.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,650.12 : 96,975.20 = 20,280.76 : x
  2. Step 2: Convert to fraction form
    64,650.12/96,975.20 = 20,280.76/x
  3. Step 3: Cross multiply
    64,650.12x = 96,975.20 × 20,280.76
  4. Step 4: Simplify right side
    64,650.12x = 1,966,730,757.15
  5. Step 5: Solve for x
    x = 1,966,730,757.15/64,650.12
  6. Step 6: Final answer
    x = 30,421.15

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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.