Home / 86,983.76-120,034.22-49,258.10

Finding the Fourth Proportional to 86,983.76, 120,034.22 and 49,258.10

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Solution

The fourth proportional to 86,983.76, 120,034.22 and 49,258.10 is: 67,974.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,983.76 : 120,034.22 = 49,258.10 : x
  2. Step 2: Convert to fraction form
    86,983.76/120,034.22 = 49,258.10/x
  3. Step 3: Cross multiply
    86,983.76x = 120,034.22 × 49,258.10
  4. Step 4: Simplify right side
    86,983.76x = 5,912,657,612.18
  5. Step 5: Solve for x
    x = 5,912,657,612.18/86,983.76
  6. Step 6: Final answer
    x = 67,974.27

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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.