Home / 87,055.22-120,130.08-48,811.88

Finding the Fourth Proportional to 87,055.22, 120,130.08 and 48,811.88

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Solution

The fourth proportional to 87,055.22, 120,130.08 and 48,811.88 is: 67,356.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,055.22 : 120,130.08 = 48,811.88 : x
  2. Step 2: Convert to fraction form
    87,055.22/120,130.08 = 48,811.88/x
  3. Step 3: Cross multiply
    87,055.22x = 120,130.08 × 48,811.88
  4. Step 4: Simplify right side
    87,055.22x = 5,863,775,049.35
  5. Step 5: Solve for x
    x = 5,863,775,049.35/87,055.22
  6. Step 6: Final answer
    x = 67,356.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.