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Finding the Fourth Proportional to 88,123.68, 121,608.74 and 49,882.47

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Solution

The fourth proportional to 88,123.68, 121,608.74 and 49,882.47 is: 68,836.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,123.68 : 121,608.74 = 49,882.47 : x
  2. Step 2: Convert to fraction form
    88,123.68/121,608.74 = 49,882.47/x
  3. Step 3: Cross multiply
    88,123.68x = 121,608.74 × 49,882.47
  4. Step 4: Simplify right side
    88,123.68x = 6,066,144,324.79
  5. Step 5: Solve for x
    x = 6,066,144,324.79/88,123.68
  6. Step 6: Final answer
    x = 68,836.71

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1.5x scale

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.