Home / 66,286.50-99,429.72-54,575.11

Finding the Fourth Proportional to 66,286.50, 99,429.72 and 54,575.11

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Solution

The fourth proportional to 66,286.50, 99,429.72 and 54,575.11 is: 81,862.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,286.50 : 99,429.72 = 54,575.11 : x
  2. Step 2: Convert to fraction form
    66,286.50/99,429.72 = 54,575.11/x
  3. Step 3: Cross multiply
    66,286.50x = 99,429.72 × 54,575.11
  4. Step 4: Simplify right side
    66,286.50x = 5,426,387,906.27
  5. Step 5: Solve for x
    x = 5,426,387,906.27/66,286.50
  6. Step 6: Final answer
    x = 81,862.64

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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.