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Finding the Fourth Proportional to 60,439.38, 90,658.80 and 22,990.68

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Solution

The fourth proportional to 60,439.38, 90,658.80 and 22,990.68 is: 34,485.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,439.38 : 90,658.80 = 22,990.68 : x
  2. Step 2: Convert to fraction form
    60,439.38/90,658.80 = 22,990.68/x
  3. Step 3: Cross multiply
    60,439.38x = 90,658.80 × 22,990.68
  4. Step 4: Simplify right side
    60,439.38x = 2,084,307,459.98
  5. Step 5: Solve for x
    x = 2,084,307,459.98/60,439.38
  6. Step 6: Final answer
    x = 34,485.92

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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.