Home / 81,732.28-112,793.48-45,921.60

Finding the Fourth Proportional to 81,732.28, 112,793.48 and 45,921.60

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Solution

The fourth proportional to 81,732.28, 112,793.48 and 45,921.60 is: 63,373.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,732.28 : 112,793.48 = 45,921.60 : x
  2. Step 2: Convert to fraction form
    81,732.28/112,793.48 = 45,921.60/x
  3. Step 3: Cross multiply
    81,732.28x = 112,793.48 × 45,921.60
  4. Step 4: Simplify right side
    81,732.28x = 5,179,657,071.17
  5. Step 5: Solve for x
    x = 5,179,657,071.17/81,732.28
  6. Step 6: Final answer
    x = 63,373.46

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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.