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Finding the Fourth Proportional to 59,226.78, 81,756 and 40,097.20

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Solution

The fourth proportional to 59,226.78, 81,756 and 40,097.20 is: 55,349.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,226.78 : 81,756 = 40,097.20 : x
  2. Step 2: Convert to fraction form
    59,226.78/81,756 = 40,097.20/x
  3. Step 3: Cross multiply
    59,226.78x = 81,756 × 40,097.20
  4. Step 4: Simplify right side
    59,226.78x = 3,278,186,683.20
  5. Step 5: Solve for x
    x = 3,278,186,683.20/59,226.78
  6. Step 6: Final answer
    x = 55,349.74

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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.