Home / 66,380.85-91,595.28-38,081.07

Finding the Fourth Proportional to 66,380.85, 91,595.28 and 38,081.07

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Solution

The fourth proportional to 66,380.85, 91,595.28 and 38,081.07 is: 52,545.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,380.85 : 91,595.28 = 38,081.07 : x
  2. Step 2: Convert to fraction form
    66,380.85/91,595.28 = 38,081.07/x
  3. Step 3: Cross multiply
    66,380.85x = 91,595.28 × 38,081.07
  4. Step 4: Simplify right side
    66,380.85x = 3,488,046,269.35
  5. Step 5: Solve for x
    x = 3,488,046,269.35/66,380.85
  6. Step 6: Final answer
    x = 52,545.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.