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Finding the Fourth Proportional to 75,125.88, 112,654.80 and 35,730.72

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Solution

The fourth proportional to 75,125.88, 112,654.80 and 35,730.72 is: 53,579.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,125.88 : 112,654.80 = 35,730.72 : x
  2. Step 2: Convert to fraction form
    75,125.88/112,654.80 = 35,730.72/x
  3. Step 3: Cross multiply
    75,125.88x = 112,654.80 × 35,730.72
  4. Step 4: Simplify right side
    75,125.88x = 4,025,237,115.46
  5. Step 5: Solve for x
    x = 4,025,237,115.46/75,125.88
  6. Step 6: Final answer
    x = 53,579.90

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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.