Home / 54,275.45-81,445.28-30,279.96

Finding the Fourth Proportional to 54,275.45, 81,445.28 and 30,279.96

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Solution

The fourth proportional to 54,275.45, 81,445.28 and 30,279.96 is: 45,437.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,275.45 : 81,445.28 = 30,279.96 : x
  2. Step 2: Convert to fraction form
    54,275.45/81,445.28 = 30,279.96/x
  3. Step 3: Cross multiply
    54,275.45x = 81,445.28 × 30,279.96
  4. Step 4: Simplify right side
    54,275.45x = 2,466,159,669.19
  5. Step 5: Solve for x
    x = 2,466,159,669.19/54,275.45
  6. Step 6: Final answer
    x = 45,437.85

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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.