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Finding the Fourth Proportional to 75,350.40, 112,928.40 and 57,732.90

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Solution

The fourth proportional to 75,350.40, 112,928.40 and 57,732.90 is: 86,524.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,350.40 : 112,928.40 = 57,732.90 : x
  2. Step 2: Convert to fraction form
    75,350.40/112,928.40 = 57,732.90/x
  3. Step 3: Cross multiply
    75,350.40x = 112,928.40 × 57,732.90
  4. Step 4: Simplify right side
    75,350.40x = 6,519,684,024.36
  5. Step 5: Solve for x
    x = 6,519,684,024.36/75,350.40
  6. Step 6: Final answer
    x = 86,524.88

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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.