Home / 78,337.26-108,105.64-42,527.43

Finding the Fourth Proportional to 78,337.26, 108,105.64 and 42,527.43

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Solution

The fourth proportional to 78,337.26, 108,105.64 and 42,527.43 is: 58,687.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,337.26 : 108,105.64 = 42,527.43 : x
  2. Step 2: Convert to fraction form
    78,337.26/108,105.64 = 42,527.43/x
  3. Step 3: Cross multiply
    78,337.26x = 108,105.64 × 42,527.43
  4. Step 4: Simplify right side
    78,337.26x = 4,597,454,931.39
  5. Step 5: Solve for x
    x = 4,597,454,931.39/78,337.26
  6. Step 6: Final answer
    x = 58,687.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.