Home / 67,142.57-100,623.12-25,566.89

Finding the Fourth Proportional to 67,142.57, 100,623.12 and 25,566.89

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Solution

The fourth proportional to 67,142.57, 100,623.12 and 25,566.89 is: 38,315.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,142.57 : 100,623.12 = 25,566.89 : x
  2. Step 2: Convert to fraction form
    67,142.57/100,623.12 = 25,566.89/x
  3. Step 3: Cross multiply
    67,142.57x = 100,623.12 × 25,566.89
  4. Step 4: Simplify right side
    67,142.57x = 2,572,619,737.38
  5. Step 5: Solve for x
    x = 2,572,619,737.38/67,142.57
  6. Step 6: Final answer
    x = 38,315.78

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1.5x scale

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.