Home / 72,110.12-108,165.15-52,513.38

Finding the Fourth Proportional to 72,110.12, 108,165.15 and 52,513.38

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Solution

The fourth proportional to 72,110.12, 108,165.15 and 52,513.38 is: 78,770.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,110.12 : 108,165.15 = 52,513.38 : x
  2. Step 2: Convert to fraction form
    72,110.12/108,165.15 = 52,513.38/x
  3. Step 3: Cross multiply
    72,110.12x = 108,165.15 × 52,513.38
  4. Step 4: Simplify right side
    72,110.12x = 5,680,117,624.71
  5. Step 5: Solve for x
    x = 5,680,117,624.71/72,110.12
  6. Step 6: Final answer
    x = 78,770.05

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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.