Home / 54,153.20-81,215.40-16,713.20

Finding the Fourth Proportional to 54,153.20, 81,215.40 and 16,713.20

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Solution

The fourth proportional to 54,153.20, 81,215.40 and 16,713.20 is: 25,065.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,153.20 : 81,215.40 = 16,713.20 : x
  2. Step 2: Convert to fraction form
    54,153.20/81,215.40 = 16,713.20/x
  3. Step 3: Cross multiply
    54,153.20x = 81,215.40 × 16,713.20
  4. Step 4: Simplify right side
    54,153.20x = 1,357,369,223.28
  5. Step 5: Solve for x
    x = 1,357,369,223.28/54,153.20
  6. Step 6: Final answer
    x = 25,065.36

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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.