Home / 71,431.32-98,581.08-39,610.56

Finding the Fourth Proportional to 71,431.32, 98,581.08 and 39,610.56

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Solution

The fourth proportional to 71,431.32, 98,581.08 and 39,610.56 is: 54,665.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,431.32 : 98,581.08 = 39,610.56 : x
  2. Step 2: Convert to fraction form
    71,431.32/98,581.08 = 39,610.56/x
  3. Step 3: Cross multiply
    71,431.32x = 98,581.08 × 39,610.56
  4. Step 4: Simplify right side
    71,431.32x = 3,904,851,784.20
  5. Step 5: Solve for x
    x = 3,904,851,784.20/71,431.32
  6. Step 6: Final answer
    x = 54,665.82

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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.