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Finding the Fourth Proportional to 187,881.95, 281,820.56 and 45,727.47

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Solution

The fourth proportional to 187,881.95, 281,820.56 and 45,727.47 is: 68,590.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,881.95 : 281,820.56 = 45,727.47 : x
  2. Step 2: Convert to fraction form
    187,881.95/281,820.56 = 45,727.47/x
  3. Step 3: Cross multiply
    187,881.95x = 281,820.56 × 45,727.47
  4. Step 4: Simplify right side
    187,881.95x = 12,886,940,974.15
  5. Step 5: Solve for x
    x = 12,886,940,974.15/187,881.95
  6. Step 6: Final answer
    x = 68,590.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.