Home / 72,620.10-108,638.55-62,867.70

Finding the Fourth Proportional to 72,620.10, 108,638.55 and 62,867.70

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Solution

The fourth proportional to 72,620.10, 108,638.55 and 62,867.70 is: 94,049.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,620.10 : 108,638.55 = 62,867.70 : x
  2. Step 2: Convert to fraction form
    72,620.10/108,638.55 = 62,867.70/x
  3. Step 3: Cross multiply
    72,620.10x = 108,638.55 × 62,867.70
  4. Step 4: Simplify right side
    72,620.10x = 6,829,855,769.84
  5. Step 5: Solve for x
    x = 6,829,855,769.84/72,620.10
  6. Step 6: Final answer
    x = 94,049.11

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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.