Home / 47,229.08-65,115.60-38,699.78

Finding the Fourth Proportional to 47,229.08, 65,115.60 and 38,699.78

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Solution

The fourth proportional to 47,229.08, 65,115.60 and 38,699.78 is: 53,356.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,229.08 : 65,115.60 = 38,699.78 : x
  2. Step 2: Convert to fraction form
    47,229.08/65,115.60 = 38,699.78/x
  3. Step 3: Cross multiply
    47,229.08x = 65,115.60 × 38,699.78
  4. Step 4: Simplify right side
    47,229.08x = 2,519,959,394.57
  5. Step 5: Solve for x
    x = 2,519,959,394.57/47,229.08
  6. Step 6: Final answer
    x = 53,356.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.