Home / 71,930.49-99,264.18-40,098.70

Finding the Fourth Proportional to 71,930.49, 99,264.18 and 40,098.70

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Solution

The fourth proportional to 71,930.49, 99,264.18 and 40,098.70 is: 55,336.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,930.49 : 99,264.18 = 40,098.70 : x
  2. Step 2: Convert to fraction form
    71,930.49/99,264.18 = 40,098.70/x
  3. Step 3: Cross multiply
    71,930.49x = 99,264.18 × 40,098.70
  4. Step 4: Simplify right side
    71,930.49x = 3,980,364,574.57
  5. Step 5: Solve for x
    x = 3,980,364,574.57/71,930.49
  6. Step 6: Final answer
    x = 55,336.26

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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.