Home / 54,425.60-81,643.56-21,148.24

Finding the Fourth Proportional to 54,425.60, 81,643.56 and 21,148.24

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Solution

The fourth proportional to 54,425.60, 81,643.56 and 21,148.24 is: 31,724.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,425.60 : 81,643.56 = 21,148.24 : x
  2. Step 2: Convert to fraction form
    54,425.60/81,643.56 = 21,148.24/x
  3. Step 3: Cross multiply
    54,425.60x = 81,643.56 × 21,148.24
  4. Step 4: Simplify right side
    54,425.60x = 1,726,617,360.34
  5. Step 5: Solve for x
    x = 1,726,617,360.34/54,425.60
  6. Step 6: Final answer
    x = 31,724.36

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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.