Home / 54,085.60-81,044.78-42,211.22

Finding the Fourth Proportional to 54,085.60, 81,044.78 and 42,211.22

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Solution

The fourth proportional to 54,085.60, 81,044.78 and 42,211.22 is: 63,251.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,085.60 : 81,044.78 = 42,211.22 : x
  2. Step 2: Convert to fraction form
    54,085.60/81,044.78 = 42,211.22/x
  3. Step 3: Cross multiply
    54,085.60x = 81,044.78 × 42,211.22
  4. Step 4: Simplify right side
    54,085.60x = 3,420,999,038.43
  5. Step 5: Solve for x
    x = 3,420,999,038.43/54,085.60
  6. Step 6: Final answer
    x = 63,251.57

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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.