Home / 65,314.76-90,132.19-38,458.85

Finding the Fourth Proportional to 65,314.76, 90,132.19 and 38,458.85

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Solution

The fourth proportional to 65,314.76, 90,132.19 and 38,458.85 is: 53,071.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,314.76 : 90,132.19 = 38,458.85 : x
  2. Step 2: Convert to fraction form
    65,314.76/90,132.19 = 38,458.85/x
  3. Step 3: Cross multiply
    65,314.76x = 90,132.19 × 38,458.85
  4. Step 4: Simplify right side
    65,314.76x = 3,466,380,551.90
  5. Step 5: Solve for x
    x = 3,466,380,551.90/65,314.76
  6. Step 6: Final answer
    x = 53,071.94

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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.