Home / 42,114.57-63,174.60-12,529.92

Finding the Fourth Proportional to 42,114.57, 63,174.60 and 12,529.92

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Solution

The fourth proportional to 42,114.57, 63,174.60 and 12,529.92 is: 18,795.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,114.57 : 63,174.60 = 12,529.92 : x
  2. Step 2: Convert to fraction form
    42,114.57/63,174.60 = 12,529.92/x
  3. Step 3: Cross multiply
    42,114.57x = 63,174.60 × 12,529.92
  4. Step 4: Simplify right side
    42,114.57x = 791,572,920.94
  5. Step 5: Solve for x
    x = 791,572,920.94/42,114.57
  6. Step 6: Final answer
    x = 18,795.70

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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.