Home / 64,641.14-96,961.71-20,271.77

Finding the Fourth Proportional to 64,641.14, 96,961.71 and 20,271.77

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Solution

The fourth proportional to 64,641.14, 96,961.71 and 20,271.77 is: 30,407.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,641.14 : 96,961.71 = 20,271.77 : x
  2. Step 2: Convert to fraction form
    64,641.14/96,961.71 = 20,271.77/x
  3. Step 3: Cross multiply
    64,641.14x = 96,961.71 × 20,271.77
  4. Step 4: Simplify right side
    64,641.14x = 1,965,584,999.12
  5. Step 5: Solve for x
    x = 1,965,584,999.12/64,641.14
  6. Step 6: Final answer
    x = 30,407.65

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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.