Home / 78,864.26-108,834.33-43,055.78

Finding the Fourth Proportional to 78,864.26, 108,834.33 and 43,055.78

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Solution

The fourth proportional to 78,864.26, 108,834.33 and 43,055.78 is: 59,417.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,864.26 : 108,834.33 = 43,055.78 : x
  2. Step 2: Convert to fraction form
    78,864.26/108,834.33 = 43,055.78/x
  3. Step 3: Cross multiply
    78,864.26x = 108,834.33 × 43,055.78
  4. Step 4: Simplify right side
    78,864.26x = 4,685,946,753.65
  5. Step 5: Solve for x
    x = 4,685,946,753.65/78,864.26
  6. Step 6: Final answer
    x = 59,417.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.