Home / 87,732.80-121,070.04-50,007.68

Finding the Fourth Proportional to 87,732.80, 121,070.04 and 50,007.68

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Solution

The fourth proportional to 87,732.80, 121,070.04 and 50,007.68 is: 69,009.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,732.80 : 121,070.04 = 50,007.68 : x
  2. Step 2: Convert to fraction form
    87,732.80/121,070.04 = 50,007.68/x
  3. Step 3: Cross multiply
    87,732.80x = 121,070.04 × 50,007.68
  4. Step 4: Simplify right side
    87,732.80x = 6,054,431,817.91
  5. Step 5: Solve for x
    x = 6,054,431,817.91/87,732.80
  6. Step 6: Final answer
    x = 69,009.90

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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.