Home / 54,000.20-81,000.30-49,723.40

Finding the Fourth Proportional to 54,000.20, 81,000.30 and 49,723.40

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Solution

The fourth proportional to 54,000.20, 81,000.30 and 49,723.40 is: 74,585.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,000.20 : 81,000.30 = 49,723.40 : x
  2. Step 2: Convert to fraction form
    54,000.20/81,000.30 = 49,723.40/x
  3. Step 3: Cross multiply
    54,000.20x = 81,000.30 × 49,723.40
  4. Step 4: Simplify right side
    54,000.20x = 4,027,610,317.02
  5. Step 5: Solve for x
    x = 4,027,610,317.02/54,000.20
  6. Step 6: Final answer
    x = 74,585.10

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1.5x scale

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.