Home / 87,693.03-131,507.04-31,518

Finding the Fourth Proportional to 87,693.03, 131,507.04 and 31,518

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Solution

The fourth proportional to 87,693.03, 131,507.04 and 31,518 is: 47,265.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,693.03 : 131,507.04 = 31,518 : x
  2. Step 2: Convert to fraction form
    87,693.03/131,507.04 = 31,518/x
  3. Step 3: Cross multiply
    87,693.03x = 131,507.04 × 31,518
  4. Step 4: Simplify right side
    87,693.03x = 4,144,838,886.72
  5. Step 5: Solve for x
    x = 4,144,838,886.72/87,693.03
  6. Step 6: Final answer
    x = 47,265.32

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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.