Home / 82,972.97-124,551.77-42,981.28

Finding the Fourth Proportional to 82,972.97, 124,551.77 and 42,981.28

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Solution

The fourth proportional to 82,972.97, 124,551.77 and 42,981.28 is: 64,519.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,972.97 : 124,551.77 = 42,981.28 : x
  2. Step 2: Convert to fraction form
    82,972.97/124,551.77 = 42,981.28/x
  3. Step 3: Cross multiply
    82,972.97x = 124,551.77 × 42,981.28
  4. Step 4: Simplify right side
    82,972.97x = 5,353,394,213.60
  5. Step 5: Solve for x
    x = 5,353,394,213.60/82,972.97
  6. Step 6: Final answer
    x = 64,519.74

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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.