Home / 80,732.48-121,053.06-38,622.74

Finding the Fourth Proportional to 80,732.48, 121,053.06 and 38,622.74

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Solution

The fourth proportional to 80,732.48, 121,053.06 and 38,622.74 is: 57,912.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,732.48 : 121,053.06 = 38,622.74 : x
  2. Step 2: Convert to fraction form
    80,732.48/121,053.06 = 38,622.74/x
  3. Step 3: Cross multiply
    80,732.48x = 121,053.06 × 38,622.74
  4. Step 4: Simplify right side
    80,732.48x = 4,675,400,257.32
  5. Step 5: Solve for x
    x = 4,675,400,257.32/80,732.48
  6. Step 6: Final answer
    x = 57,912.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.