Home / 54,259.20-81,475.20-36,806.40

Finding the Fourth Proportional to 54,259.20, 81,475.20 and 36,806.40

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Solution

The fourth proportional to 54,259.20, 81,475.20 and 36,806.40 is: 55,268.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,259.20 : 81,475.20 = 36,806.40 : x
  2. Step 2: Convert to fraction form
    54,259.20/81,475.20 = 36,806.40/x
  3. Step 3: Cross multiply
    54,259.20x = 81,475.20 × 36,806.40
  4. Step 4: Simplify right side
    54,259.20x = 2,998,808,801.28
  5. Step 5: Solve for x
    x = 2,998,808,801.28/54,259.20
  6. Step 6: Final answer
    x = 55,268.21

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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.