Home / 78,864.23-108,834.28-43,055.75

Finding the Fourth Proportional to 78,864.23, 108,834.28 and 43,055.75

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Solution

The fourth proportional to 78,864.23, 108,834.28 and 43,055.75 is: 59,417.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,864.23 : 108,834.28 = 43,055.75 : x
  2. Step 2: Convert to fraction form
    78,864.23/108,834.28 = 43,055.75/x
  3. Step 3: Cross multiply
    78,864.23x = 108,834.28 × 43,055.75
  4. Step 4: Simplify right side
    78,864.23x = 4,685,940,899.30
  5. Step 5: Solve for x
    x = 4,685,940,899.30/78,864.23
  6. Step 6: Final answer
    x = 59,417.83

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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.