Home / 83,471.28-115,190.80-45,746.88

Finding the Fourth Proportional to 83,471.28, 115,190.80 and 45,746.88

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Solution

The fourth proportional to 83,471.28, 115,190.80 and 45,746.88 is: 63,130.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,471.28 : 115,190.80 = 45,746.88 : x
  2. Step 2: Convert to fraction form
    83,471.28/115,190.80 = 45,746.88/x
  3. Step 3: Cross multiply
    83,471.28x = 115,190.80 × 45,746.88
  4. Step 4: Simplify right side
    83,471.28x = 5,269,619,704.70
  5. Step 5: Solve for x
    x = 5,269,619,704.70/83,471.28
  6. Step 6: Final answer
    x = 63,130.93

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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.