Home / 65,449.20-90,318.60-38,592.84

Finding the Fourth Proportional to 65,449.20, 90,318.60 and 38,592.84

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Solution

The fourth proportional to 65,449.20, 90,318.60 and 38,592.84 is: 53,257.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,449.20 : 90,318.60 = 38,592.84 : x
  2. Step 2: Convert to fraction form
    65,449.20/90,318.60 = 38,592.84/x
  3. Step 3: Cross multiply
    65,449.20x = 90,318.60 × 38,592.84
  4. Step 4: Simplify right side
    65,449.20x = 3,485,651,278.82
  5. Step 5: Solve for x
    x = 3,485,651,278.82/65,449.20
  6. Step 6: Final answer
    x = 53,257.35

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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.