Home / 71,541.27-98,731.43-39,710.70

Finding the Fourth Proportional to 71,541.27, 98,731.43 and 39,710.70

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Solution

The fourth proportional to 71,541.27, 98,731.43 and 39,710.70 is: 54,803.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,541.27 : 98,731.43 = 39,710.70 : x
  2. Step 2: Convert to fraction form
    71,541.27/98,731.43 = 39,710.70/x
  3. Step 3: Cross multiply
    71,541.27x = 98,731.43 × 39,710.70
  4. Step 4: Simplify right side
    71,541.27x = 3,920,694,197.30
  5. Step 5: Solve for x
    x = 3,920,694,197.30/71,541.27
  6. Step 6: Final answer
    x = 54,803.25

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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.