Home / 87,860.28-131,792.02-31,704.60

Finding the Fourth Proportional to 87,860.28, 131,792.02 and 31,704.60

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Solution

The fourth proportional to 87,860.28, 131,792.02 and 31,704.60 is: 47,557.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,860.28 : 131,792.02 = 31,704.60 : x
  2. Step 2: Convert to fraction form
    87,860.28/131,792.02 = 31,704.60/x
  3. Step 3: Cross multiply
    87,860.28x = 131,792.02 × 31,704.60
  4. Step 4: Simplify right side
    87,860.28x = 4,178,413,277.29
  5. Step 5: Solve for x
    x = 4,178,413,277.29/87,860.28
  6. Step 6: Final answer
    x = 47,557.48

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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.