Home / 87,577.90-120,731.52-62,383.66

Finding the Fourth Proportional to 87,577.90, 120,731.52 and 62,383.66

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Solution

The fourth proportional to 87,577.90, 120,731.52 and 62,383.66 is: 85,999.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,577.90 : 120,731.52 = 62,383.66 : x
  2. Step 2: Convert to fraction form
    87,577.90/120,731.52 = 62,383.66/x
  3. Step 3: Cross multiply
    87,577.90x = 120,731.52 × 62,383.66
  4. Step 4: Simplify right side
    87,577.90x = 7,531,674,094.96
  5. Step 5: Solve for x
    x = 7,531,674,094.96/87,577.90
  6. Step 6: Final answer
    x = 85,999.71

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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.