Home / 66,887.27-92,291.43-39,658.32

Finding the Fourth Proportional to 66,887.27, 92,291.43 and 39,658.32

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Solution

The fourth proportional to 66,887.27, 92,291.43 and 39,658.32 is: 54,720.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,887.27 : 92,291.43 = 39,658.32 : x
  2. Step 2: Convert to fraction form
    66,887.27/92,291.43 = 39,658.32/x
  3. Step 3: Cross multiply
    66,887.27x = 92,291.43 × 39,658.32
  4. Step 4: Simplify right side
    66,887.27x = 3,660,123,064.20
  5. Step 5: Solve for x
    x = 3,660,123,064.20/66,887.27
  6. Step 6: Final answer
    x = 54,720.78

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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.