Home / 65,414.12-90,270.06-38,194.88

Finding the Fourth Proportional to 65,414.12, 90,270.06 and 38,194.88

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Solution

The fourth proportional to 65,414.12, 90,270.06 and 38,194.88 is: 52,708.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,414.12 : 90,270.06 = 38,194.88 : x
  2. Step 2: Convert to fraction form
    65,414.12/90,270.06 = 38,194.88/x
  3. Step 3: Cross multiply
    65,414.12x = 90,270.06 × 38,194.88
  4. Step 4: Simplify right side
    65,414.12x = 3,447,854,109.29
  5. Step 5: Solve for x
    x = 3,447,854,109.29/65,414.12
  6. Step 6: Final answer
    x = 52,708.10

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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.