Home / 54,291.60-81,432.27-19,229.40

Finding the Fourth Proportional to 54,291.60, 81,432.27 and 19,229.40

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Solution

The fourth proportional to 54,291.60, 81,432.27 and 19,229.40 is: 28,842.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,291.60 : 81,432.27 = 19,229.40 : x
  2. Step 2: Convert to fraction form
    54,291.60/81,432.27 = 19,229.40/x
  3. Step 3: Cross multiply
    54,291.60x = 81,432.27 × 19,229.40
  4. Step 4: Simplify right side
    54,291.60x = 1,565,893,692.74
  5. Step 5: Solve for x
    x = 1,565,893,692.74/54,291.60
  6. Step 6: Final answer
    x = 28,842.28

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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.