Home / 54,047.60-81,119.40-31,833.20

Finding the Fourth Proportional to 54,047.60, 81,119.40 and 31,833.20

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Solution

The fourth proportional to 54,047.60, 81,119.40 and 31,833.20 is: 47,778.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,047.60 : 81,119.40 = 31,833.20 : x
  2. Step 2: Convert to fraction form
    54,047.60/81,119.40 = 31,833.20/x
  3. Step 3: Cross multiply
    54,047.60x = 81,119.40 × 31,833.20
  4. Step 4: Simplify right side
    54,047.60x = 2,582,290,084.08
  5. Step 5: Solve for x
    x = 2,582,290,084.08/54,047.60
  6. Step 6: Final answer
    x = 47,778.07

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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.