Home / 89,619.76-123,670.99-49,332.68

Finding the Fourth Proportional to 89,619.76, 123,670.99 and 49,332.68

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Solution

The fourth proportional to 89,619.76, 123,670.99 and 49,332.68 is: 68,076.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,619.76 : 123,670.99 = 49,332.68 : x
  2. Step 2: Convert to fraction form
    89,619.76/123,670.99 = 49,332.68/x
  3. Step 3: Cross multiply
    89,619.76x = 123,670.99 × 49,332.68
  4. Step 4: Simplify right side
    89,619.76x = 6,101,021,374.95
  5. Step 5: Solve for x
    x = 6,101,021,374.95/89,619.76
  6. Step 6: Final answer
    x = 68,076.74

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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.