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Finding the Fourth Proportional to 88,784, 122,521.92 and 49,042.56

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Solution

The fourth proportional to 88,784, 122,521.92 and 49,042.56 is: 67,678.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,784 : 122,521.92 = 49,042.56 : x
  2. Step 2: Convert to fraction form
    88,784/122,521.92 = 49,042.56/x
  3. Step 3: Cross multiply
    88,784x = 122,521.92 × 49,042.56
  4. Step 4: Simplify right side
    88,784x = 6,008,788,612.92
  5. Step 5: Solve for x
    x = 6,008,788,612.92/88,784
  6. Step 6: Final answer
    x = 67,678.73

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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.