Home / 54,353.60-81,578.40-32,139.20

Finding the Fourth Proportional to 54,353.60, 81,578.40 and 32,139.20

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Solution

The fourth proportional to 54,353.60, 81,578.40 and 32,139.20 is: 48,237.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,353.60 : 81,578.40 = 32,139.20 : x
  2. Step 2: Convert to fraction form
    54,353.60/81,578.40 = 32,139.20/x
  3. Step 3: Cross multiply
    54,353.60x = 81,578.40 × 32,139.20
  4. Step 4: Simplify right side
    54,353.60x = 2,621,864,513.28
  5. Step 5: Solve for x
    x = 2,621,864,513.28/54,353.60
  6. Step 6: Final answer
    x = 48,237.18

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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.