Home / 83,453.52-125,180.36-21,124.02

Finding the Fourth Proportional to 83,453.52, 125,180.36 and 21,124.02

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Solution

The fourth proportional to 83,453.52, 125,180.36 and 21,124.02 is: 31,686.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,453.52 : 125,180.36 = 21,124.02 : x
  2. Step 2: Convert to fraction form
    83,453.52/125,180.36 = 21,124.02/x
  3. Step 3: Cross multiply
    83,453.52x = 125,180.36 × 21,124.02
  4. Step 4: Simplify right side
    83,453.52x = 2,644,312,428.25
  5. Step 5: Solve for x
    x = 2,644,312,428.25/83,453.52
  6. Step 6: Final answer
    x = 31,686.05

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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.