Home / 40,211.92-60,302.04-12,123.28

Finding the Fourth Proportional to 40,211.92, 60,302.04 and 12,123.28

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Solution

The fourth proportional to 40,211.92, 60,302.04 and 12,123.28 is: 18,180.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,211.92 : 60,302.04 = 12,123.28 : x
  2. Step 2: Convert to fraction form
    40,211.92/60,302.04 = 12,123.28/x
  3. Step 3: Cross multiply
    40,211.92x = 60,302.04 × 12,123.28
  4. Step 4: Simplify right side
    40,211.92x = 731,058,515.49
  5. Step 5: Solve for x
    x = 731,058,515.49/40,211.92
  6. Step 6: Final answer
    x = 18,180.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.