Home / 89,834.63-123,972.35-49,549.46

Finding the Fourth Proportional to 89,834.63, 123,972.35 and 49,549.46

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Solution

The fourth proportional to 89,834.63, 123,972.35 and 49,549.46 is: 68,378.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,834.63 : 123,972.35 = 49,549.46 : x
  2. Step 2: Convert to fraction form
    89,834.63/123,972.35 = 49,549.46/x
  3. Step 3: Cross multiply
    89,834.63x = 123,972.35 × 49,549.46
  4. Step 4: Simplify right side
    89,834.63x = 6,142,762,129.82
  5. Step 5: Solve for x
    x = 6,142,762,129.82/89,834.63
  6. Step 6: Final answer
    x = 68,378.56

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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.