Home / 83,427.12-115,101.26-47,591.90

Finding the Fourth Proportional to 83,427.12, 115,101.26 and 47,591.90

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Solution

The fourth proportional to 83,427.12, 115,101.26 and 47,591.90 is: 65,660.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,427.12 : 115,101.26 = 47,591.90 : x
  2. Step 2: Convert to fraction form
    83,427.12/115,101.26 = 47,591.90/x
  3. Step 3: Cross multiply
    83,427.12x = 115,101.26 × 47,591.90
  4. Step 4: Simplify right side
    83,427.12x = 5,477,887,655.79
  5. Step 5: Solve for x
    x = 5,477,887,655.79/83,427.12
  6. Step 6: Final answer
    x = 65,660.75

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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.