Home / 71,139.33-98,172.14-40,923.90

Finding the Fourth Proportional to 71,139.33, 98,172.14 and 40,923.90

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Solution

The fourth proportional to 71,139.33, 98,172.14 and 40,923.90 is: 56,474.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,139.33 : 98,172.14 = 40,923.90 : x
  2. Step 2: Convert to fraction form
    71,139.33/98,172.14 = 40,923.90/x
  3. Step 3: Cross multiply
    71,139.33x = 98,172.14 × 40,923.90
  4. Step 4: Simplify right side
    71,139.33x = 4,017,586,635.53
  5. Step 5: Solve for x
    x = 4,017,586,635.53/71,139.33
  6. Step 6: Final answer
    x = 56,474.90

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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.