Home / 81,456.95-122,204.55-25,294.16

Finding the Fourth Proportional to 81,456.95, 122,204.55 and 25,294.16

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Solution

The fourth proportional to 81,456.95, 122,204.55 and 25,294.16 is: 37,947.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,456.95 : 122,204.55 = 25,294.16 : x
  2. Step 2: Convert to fraction form
    81,456.95/122,204.55 = 25,294.16/x
  3. Step 3: Cross multiply
    81,456.95x = 122,204.55 × 25,294.16
  4. Step 4: Simplify right side
    81,456.95x = 3,091,060,829.41
  5. Step 5: Solve for x
    x = 3,091,060,829.41/81,456.95
  6. Step 6: Final answer
    x = 37,947.17

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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.