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Finding the Fourth Proportional to 83,390.10, 125,000.10 and 41,205.30

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Solution

The fourth proportional to 83,390.10, 125,000.10 and 41,205.30 is: 61,765.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,390.10 : 125,000.10 = 41,205.30 : x
  2. Step 2: Convert to fraction form
    83,390.10/125,000.10 = 41,205.30/x
  3. Step 3: Cross multiply
    83,390.10x = 125,000.10 × 41,205.30
  4. Step 4: Simplify right side
    83,390.10x = 5,150,666,620.53
  5. Step 5: Solve for x
    x = 5,150,666,620.53/83,390.10
  6. Step 6: Final answer
    x = 61,765.92

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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.