Home / 83,275.64-124,962.33-30,721.76

Finding the Fourth Proportional to 83,275.64, 124,962.33 and 30,721.76

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Solution

The fourth proportional to 83,275.64, 124,962.33 and 30,721.76 is: 46,100.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,275.64 : 124,962.33 = 30,721.76 : x
  2. Step 2: Convert to fraction form
    83,275.64/124,962.33 = 30,721.76/x
  3. Step 3: Cross multiply
    83,275.64x = 124,962.33 × 30,721.76
  4. Step 4: Simplify right side
    83,275.64x = 3,839,062,711.30
  5. Step 5: Solve for x
    x = 3,839,062,711.30/83,275.64
  6. Step 6: Final answer
    x = 46,100.67

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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.