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Finding the Fourth Proportional to 77,147.20, 115,727.20 and 24,555.20

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Solution

The fourth proportional to 77,147.20, 115,727.20 and 24,555.20 is: 36,834.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,147.20 : 115,727.20 = 24,555.20 : x
  2. Step 2: Convert to fraction form
    77,147.20/115,727.20 = 24,555.20/x
  3. Step 3: Cross multiply
    77,147.20x = 115,727.20 × 24,555.20
  4. Step 4: Simplify right side
    77,147.20x = 2,841,704,541.44
  5. Step 5: Solve for x
    x = 2,841,704,541.44/77,147.20
  6. Step 6: Final answer
    x = 36,834.84

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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.