Home / 66,939.12-92,375.12-38,258.52

Finding the Fourth Proportional to 66,939.12, 92,375.12 and 38,258.52

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Solution

The fourth proportional to 66,939.12, 92,375.12 and 38,258.52 is: 52,796.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,939.12 : 92,375.12 = 38,258.52 : x
  2. Step 2: Convert to fraction form
    66,939.12/92,375.12 = 38,258.52/x
  3. Step 3: Cross multiply
    66,939.12x = 92,375.12 × 38,258.52
  4. Step 4: Simplify right side
    66,939.12x = 3,534,135,376.02
  5. Step 5: Solve for x
    x = 3,534,135,376.02/66,939.12
  6. Step 6: Final answer
    x = 52,796.26

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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.