Home / 78,461.16-108,246.26-58,091.72

Finding the Fourth Proportional to 78,461.16, 108,246.26 and 58,091.72

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Solution

The fourth proportional to 78,461.16, 108,246.26 and 58,091.72 is: 80,144.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,461.16 : 108,246.26 = 58,091.72 : x
  2. Step 2: Convert to fraction form
    78,461.16/108,246.26 = 58,091.72/x
  3. Step 3: Cross multiply
    78,461.16x = 108,246.26 × 58,091.72
  4. Step 4: Simplify right side
    78,461.16x = 6,288,211,426.97
  5. Step 5: Solve for x
    x = 6,288,211,426.97/78,461.16
  6. Step 6: Final answer
    x = 80,144.26

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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.