Home / 57,127.62-78,825.12-36,981.66

Finding the Fourth Proportional to 57,127.62, 78,825.12 and 36,981.66

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Solution

The fourth proportional to 57,127.62, 78,825.12 and 36,981.66 is: 51,027.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,127.62 : 78,825.12 = 36,981.66 : x
  2. Step 2: Convert to fraction form
    57,127.62/78,825.12 = 36,981.66/x
  3. Step 3: Cross multiply
    57,127.62x = 78,825.12 × 36,981.66
  4. Step 4: Simplify right side
    57,127.62x = 2,915,083,787.30
  5. Step 5: Solve for x
    x = 2,915,083,787.30/57,127.62
  6. Step 6: Final answer
    x = 51,027.57

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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.