Home / 71,185.19-98,237.61-39,356.15

Finding the Fourth Proportional to 71,185.19, 98,237.61 and 39,356.15

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Solution

The fourth proportional to 71,185.19, 98,237.61 and 39,356.15 is: 54,312.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,185.19 : 98,237.61 = 39,356.15 : x
  2. Step 2: Convert to fraction form
    71,185.19/98,237.61 = 39,356.15/x
  3. Step 3: Cross multiply
    71,185.19x = 98,237.61 × 39,356.15
  4. Step 4: Simplify right side
    71,185.19x = 3,866,253,623.61
  5. Step 5: Solve for x
    x = 3,866,253,623.61/71,185.19
  6. Step 6: Final answer
    x = 54,312.62

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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.