Home / 87,482.89-120,724.95-48,720.34

Finding the Fourth Proportional to 87,482.89, 120,724.95 and 48,720.34

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Solution

The fourth proportional to 87,482.89, 120,724.95 and 48,720.34 is: 67,233.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,482.89 : 120,724.95 = 48,720.34 : x
  2. Step 2: Convert to fraction form
    87,482.89/120,724.95 = 48,720.34/x
  3. Step 3: Cross multiply
    87,482.89x = 120,724.95 × 48,720.34
  4. Step 4: Simplify right side
    87,482.89x = 5,881,760,610.48
  5. Step 5: Solve for x
    x = 5,881,760,610.48/87,482.89
  6. Step 6: Final answer
    x = 67,233.27

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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.