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Finding the Fourth Proportional to 75,044.52, 112,566.72 and 30,086.20

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Solution

The fourth proportional to 75,044.52, 112,566.72 and 30,086.20 is: 45,129.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,044.52 : 112,566.72 = 30,086.20 : x
  2. Step 2: Convert to fraction form
    75,044.52/112,566.72 = 30,086.20/x
  3. Step 3: Cross multiply
    75,044.52x = 112,566.72 × 30,086.20
  4. Step 4: Simplify right side
    75,044.52x = 3,386,704,851.26
  5. Step 5: Solve for x
    x = 3,386,704,851.26/75,044.52
  6. Step 6: Final answer
    x = 45,129.28

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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.