Home / 83,905.75-125,913.30-42,352.75

Finding the Fourth Proportional to 83,905.75, 125,913.30 and 42,352.75

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Solution

The fourth proportional to 83,905.75, 125,913.30 and 42,352.75 is: 63,556.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,905.75 : 125,913.30 = 42,352.75 : x
  2. Step 2: Convert to fraction form
    83,905.75/125,913.30 = 42,352.75/x
  3. Step 3: Cross multiply
    83,905.75x = 125,913.30 × 42,352.75
  4. Step 4: Simplify right side
    83,905.75x = 5,332,774,516.58
  5. Step 5: Solve for x
    x = 5,332,774,516.58/83,905.75
  6. Step 6: Final answer
    x = 63,556.72

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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.