Home / 87,801.50-131,688.86-28,637.07

Finding the Fourth Proportional to 87,801.50, 131,688.86 and 28,637.07

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Solution

The fourth proportional to 87,801.50, 131,688.86 and 28,637.07 is: 42,951.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,801.50 : 131,688.86 = 28,637.07 : x
  2. Step 2: Convert to fraction form
    87,801.50/131,688.86 = 28,637.07/x
  3. Step 3: Cross multiply
    87,801.50x = 131,688.86 × 28,637.07
  4. Step 4: Simplify right side
    87,801.50x = 3,771,182,958.85
  5. Step 5: Solve for x
    x = 3,771,182,958.85/87,801.50
  6. Step 6: Final answer
    x = 42,951.24

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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.