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Finding the Fourth Proportional to 40,523.60, 60,785.40 and 28,713.80

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Solution

The fourth proportional to 40,523.60, 60,785.40 and 28,713.80 is: 43,070.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,523.60 : 60,785.40 = 28,713.80 : x
  2. Step 2: Convert to fraction form
    40,523.60/60,785.40 = 28,713.80/x
  3. Step 3: Cross multiply
    40,523.60x = 60,785.40 × 28,713.80
  4. Step 4: Simplify right side
    40,523.60x = 1,745,379,818.52
  5. Step 5: Solve for x
    x = 1,745,379,818.52/40,523.60
  6. Step 6: Final answer
    x = 43,070.70

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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.