Home / 60,725.60-91,069.68-21,275.36

Finding the Fourth Proportional to 60,725.60, 91,069.68 and 21,275.36

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Solution

The fourth proportional to 60,725.60, 91,069.68 and 21,275.36 is: 31,906.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,725.60 : 91,069.68 = 21,275.36 : x
  2. Step 2: Convert to fraction form
    60,725.60/91,069.68 = 21,275.36/x
  3. Step 3: Cross multiply
    60,725.60x = 91,069.68 × 21,275.36
  4. Step 4: Simplify right side
    60,725.60x = 1,937,540,227.08
  5. Step 5: Solve for x
    x = 1,937,540,227.08/60,725.60
  6. Step 6: Final answer
    x = 31,906.48

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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.