Home / 90,209.76-124,491.50-58,433.96

Finding the Fourth Proportional to 90,209.76, 124,491.50 and 58,433.96

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Solution

The fourth proportional to 90,209.76, 124,491.50 and 58,433.96 is: 80,640.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,209.76 : 124,491.50 = 58,433.96 : x
  2. Step 2: Convert to fraction form
    90,209.76/124,491.50 = 58,433.96/x
  3. Step 3: Cross multiply
    90,209.76x = 124,491.50 × 58,433.96
  4. Step 4: Simplify right side
    90,209.76x = 7,274,531,331.34
  5. Step 5: Solve for x
    x = 7,274,531,331.34/90,209.76
  6. Step 6: Final answer
    x = 80,640.18

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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.