Home / 76,732.40-115,111.20-24,129.20

Finding the Fourth Proportional to 76,732.40, 115,111.20 and 24,129.20

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Solution

The fourth proportional to 76,732.40, 115,111.20 and 24,129.20 is: 36,197.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,732.40 : 115,111.20 = 24,129.20 : x
  2. Step 2: Convert to fraction form
    76,732.40/115,111.20 = 24,129.20/x
  3. Step 3: Cross multiply
    76,732.40x = 115,111.20 × 24,129.20
  4. Step 4: Simplify right side
    76,732.40x = 2,777,541,167.04
  5. Step 5: Solve for x
    x = 2,777,541,167.04/76,732.40
  6. Step 6: Final answer
    x = 36,197.76

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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.