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Finding the Fourth Proportional to 87,599, 120,886.80 and 49,873.25

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Solution

The fourth proportional to 87,599, 120,886.80 and 49,873.25 is: 68,825.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,599 : 120,886.80 = 49,873.25 : x
  2. Step 2: Convert to fraction form
    87,599/120,886.80 = 49,873.25/x
  3. Step 3: Cross multiply
    87,599x = 120,886.80 × 49,873.25
  4. Step 4: Simplify right side
    87,599x = 6,029,017,598.10
  5. Step 5: Solve for x
    x = 6,029,017,598.10/87,599
  6. Step 6: Final answer
    x = 68,825.19

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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.