Home / 102,791.04-154,210.32-31,711.92

Finding the Fourth Proportional to 102,791.04, 154,210.32 and 31,711.92

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Solution

The fourth proportional to 102,791.04, 154,210.32 and 31,711.92 is: 47,575.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,791.04 : 154,210.32 = 31,711.92 : x
  2. Step 2: Convert to fraction form
    102,791.04/154,210.32 = 31,711.92/x
  3. Step 3: Cross multiply
    102,791.04x = 154,210.32 × 31,711.92
  4. Step 4: Simplify right side
    102,791.04x = 4,890,305,331.01
  5. Step 5: Solve for x
    x = 4,890,305,331.01/102,791.04
  6. Step 6: Final answer
    x = 47,575.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.