Home / 54,585.48-81,879.84-15,145.50

Finding the Fourth Proportional to 54,585.48, 81,879.84 and 15,145.50

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Solution

The fourth proportional to 54,585.48, 81,879.84 and 15,145.50 is: 22,718.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,585.48 : 81,879.84 = 15,145.50 : x
  2. Step 2: Convert to fraction form
    54,585.48/81,879.84 = 15,145.50/x
  3. Step 3: Cross multiply
    54,585.48x = 81,879.84 × 15,145.50
  4. Step 4: Simplify right side
    54,585.48x = 1,240,111,116.72
  5. Step 5: Solve for x
    x = 1,240,111,116.72/54,585.48
  6. Step 6: Final answer
    x = 22,718.70

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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.