Home / 87,659.22-120,969.72-47,373.06

Finding the Fourth Proportional to 87,659.22, 120,969.72 and 47,373.06

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Solution

The fourth proportional to 87,659.22, 120,969.72 and 47,373.06 is: 65,374.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,659.22 : 120,969.72 = 47,373.06 : x
  2. Step 2: Convert to fraction form
    87,659.22/120,969.72 = 47,373.06/x
  3. Step 3: Cross multiply
    87,659.22x = 120,969.72 × 47,373.06
  4. Step 4: Simplify right side
    87,659.22x = 5,730,705,803.74
  5. Step 5: Solve for x
    x = 5,730,705,803.74/87,659.22
  6. Step 6: Final answer
    x = 65,374.82

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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.