Home / 87,811.02-131,740.29-31,657.37

Finding the Fourth Proportional to 87,811.02, 131,740.29 and 31,657.37

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Solution

The fourth proportional to 87,811.02, 131,740.29 and 31,657.37 is: 47,494.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,811.02 : 131,740.29 = 31,657.37 : x
  2. Step 2: Convert to fraction form
    87,811.02/131,740.29 = 31,657.37/x
  3. Step 3: Cross multiply
    87,811.02x = 131,740.29 × 31,657.37
  4. Step 4: Simplify right side
    87,811.02x = 4,170,550,445.74
  5. Step 5: Solve for x
    x = 4,170,550,445.74/87,811.02
  6. Step 6: Final answer
    x = 47,494.61

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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.