Home / 83,425.28-125,137.92-21,095.76

Finding the Fourth Proportional to 83,425.28, 125,137.92 and 21,095.76

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Solution

The fourth proportional to 83,425.28, 125,137.92 and 21,095.76 is: 31,643.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,425.28 : 125,137.92 = 21,095.76 : x
  2. Step 2: Convert to fraction form
    83,425.28/125,137.92 = 21,095.76/x
  3. Step 3: Cross multiply
    83,425.28x = 125,137.92 × 21,095.76
  4. Step 4: Simplify right side
    83,425.28x = 2,639,879,527.22
  5. Step 5: Solve for x
    x = 2,639,879,527.22/83,425.28
  6. Step 6: Final answer
    x = 31,643.64

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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.