Home / 83,585.52-125,378.01-21,256.02

Finding the Fourth Proportional to 83,585.52, 125,378.01 and 21,256.02

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Solution

The fourth proportional to 83,585.52, 125,378.01 and 21,256.02 is: 31,883.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,585.52 : 125,378.01 = 21,256.02 : x
  2. Step 2: Convert to fraction form
    83,585.52/125,378.01 = 21,256.02/x
  3. Step 3: Cross multiply
    83,585.52x = 125,378.01 × 21,256.02
  4. Step 4: Simplify right side
    83,585.52x = 2,665,037,488.12
  5. Step 5: Solve for x
    x = 2,665,037,488.12/83,585.52
  6. Step 6: Final answer
    x = 31,883.96

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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.