Home / 54,520.70-75,239.28-30,645.98

Finding the Fourth Proportional to 54,520.70, 75,239.28 and 30,645.98

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Solution

The fourth proportional to 54,520.70, 75,239.28 and 30,645.98 is: 42,291.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,520.70 : 75,239.28 = 30,645.98 : x
  2. Step 2: Convert to fraction form
    54,520.70/75,239.28 = 30,645.98/x
  3. Step 3: Cross multiply
    54,520.70x = 75,239.28 × 30,645.98
  4. Step 4: Simplify right side
    54,520.70x = 2,305,781,470.09
  5. Step 5: Solve for x
    x = 2,305,781,470.09/54,520.70
  6. Step 6: Final answer
    x = 42,291.85

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1.5x scale

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.