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Finding the Fourth Proportional to 75,493.68, 113,225.40 and 71,746.80

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Solution

The fourth proportional to 75,493.68, 113,225.40 and 71,746.80 is: 107,605.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,493.68 : 113,225.40 = 71,746.80 : x
  2. Step 2: Convert to fraction form
    75,493.68/113,225.40 = 71,746.80/x
  3. Step 3: Cross multiply
    75,493.68x = 113,225.40 × 71,746.80
  4. Step 4: Simplify right side
    75,493.68x = 8,123,560,128.72
  5. Step 5: Solve for x
    x = 8,123,560,128.72/75,493.68
  6. Step 6: Final answer
    x = 107,605.83

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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.