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Finding the Fourth Proportional to 71,250.98, 106,876.37 and 28,575.66

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Solution

The fourth proportional to 71,250.98, 106,876.37 and 28,575.66 is: 42,863.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,250.98 : 106,876.37 = 28,575.66 : x
  2. Step 2: Convert to fraction form
    71,250.98/106,876.37 = 28,575.66/x
  3. Step 3: Cross multiply
    71,250.98x = 106,876.37 × 28,575.66
  4. Step 4: Simplify right side
    71,250.98x = 3,054,062,882.59
  5. Step 5: Solve for x
    x = 3,054,062,882.59/71,250.98
  6. Step 6: Final answer
    x = 42,863.45

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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.