Home / 71,136.10-98,167.61-39,304.77

Finding the Fourth Proportional to 71,136.10, 98,167.61 and 39,304.77

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Solution

The fourth proportional to 71,136.10, 98,167.61 and 39,304.77 is: 54,240.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,136.10 : 98,167.61 = 39,304.77 : x
  2. Step 2: Convert to fraction form
    71,136.10/98,167.61 = 39,304.77/x
  3. Step 3: Cross multiply
    71,136.10x = 98,167.61 × 39,304.77
  4. Step 4: Simplify right side
    71,136.10x = 3,858,454,841.66
  5. Step 5: Solve for x
    x = 3,858,454,841.66/71,136.10
  6. Step 6: Final answer
    x = 54,240.46

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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.