Home / 75,074.20-103,050.49-66,385.94

Finding the Fourth Proportional to 75,074.20, 103,050.49 and 66,385.94

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Solution

The fourth proportional to 75,074.20, 103,050.49 and 66,385.94 is: 91,124.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,074.20 : 103,050.49 = 66,385.94 : x
  2. Step 2: Convert to fraction form
    75,074.20/103,050.49 = 66,385.94/x
  3. Step 3: Cross multiply
    75,074.20x = 103,050.49 × 66,385.94
  4. Step 4: Simplify right side
    75,074.20x = 6,841,103,646.11
  5. Step 5: Solve for x
    x = 6,841,103,646.11/75,074.20
  6. Step 6: Final answer
    x = 91,124.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.