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Finding the Fourth Proportional to 60,253.92, 90,320.73 and 20,785.86

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Solution

The fourth proportional to 60,253.92, 90,320.73 and 20,785.86 is: 31,158.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,253.92 : 90,320.73 = 20,785.86 : x
  2. Step 2: Convert to fraction form
    60,253.92/90,320.73 = 20,785.86/x
  3. Step 3: Cross multiply
    60,253.92x = 90,320.73 × 20,785.86
  4. Step 4: Simplify right side
    60,253.92x = 1,877,394,048.88
  5. Step 5: Solve for x
    x = 1,877,394,048.88/60,253.92
  6. Step 6: Final answer
    x = 31,158.04

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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.