Home / 78,698.12-118,082.04-41,249.28

Finding the Fourth Proportional to 78,698.12, 118,082.04 and 41,249.28

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Solution

The fourth proportional to 78,698.12, 118,082.04 and 41,249.28 is: 61,892.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,698.12 : 118,082.04 = 41,249.28 : x
  2. Step 2: Convert to fraction form
    78,698.12/118,082.04 = 41,249.28/x
  3. Step 3: Cross multiply
    78,698.12x = 118,082.04 × 41,249.28
  4. Step 4: Simplify right side
    78,698.12x = 4,870,799,419.05
  5. Step 5: Solve for x
    x = 4,870,799,419.05/78,698.12
  6. Step 6: Final answer
    x = 61,892.20

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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.