Home / 66,299.48-99,290.92-38,160.38

Finding the Fourth Proportional to 66,299.48, 99,290.92 and 38,160.38

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Solution

The fourth proportional to 66,299.48, 99,290.92 and 38,160.38 is: 57,149.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,299.48 : 99,290.92 = 38,160.38 : x
  2. Step 2: Convert to fraction form
    66,299.48/99,290.92 = 38,160.38/x
  3. Step 3: Cross multiply
    66,299.48x = 99,290.92 × 38,160.38
  4. Step 4: Simplify right side
    66,299.48x = 3,788,979,046.95
  5. Step 5: Solve for x
    x = 3,788,979,046.95/66,299.48
  6. Step 6: Final answer
    x = 57,149.46

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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.