Home / 86,981.44-120,034.38-49,262.98

Finding the Fourth Proportional to 86,981.44, 120,034.38 and 49,262.98

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Solution

The fourth proportional to 86,981.44, 120,034.38 and 49,262.98 is: 67,982.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,981.44 : 120,034.38 = 49,262.98 : x
  2. Step 2: Convert to fraction form
    86,981.44/120,034.38 = 49,262.98/x
  3. Step 3: Cross multiply
    86,981.44x = 120,034.38 × 49,262.98
  4. Step 4: Simplify right side
    86,981.44x = 5,913,251,261.25
  5. Step 5: Solve for x
    x = 5,913,251,261.25/86,981.44
  6. Step 6: Final answer
    x = 67,982.91

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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.