Home / 84,272.54-126,445.69-39,930.94

Finding the Fourth Proportional to 84,272.54, 126,445.69 and 39,930.94

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Solution

The fourth proportional to 84,272.54, 126,445.69 and 39,930.94 is: 59,913.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,272.54 : 126,445.69 = 39,930.94 : x
  2. Step 2: Convert to fraction form
    84,272.54/126,445.69 = 39,930.94/x
  3. Step 3: Cross multiply
    84,272.54x = 126,445.69 × 39,930.94
  4. Step 4: Simplify right side
    84,272.54x = 5,049,095,260.65
  5. Step 5: Solve for x
    x = 5,049,095,260.65/84,272.54
  6. Step 6: Final answer
    x = 59,913.88

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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.