Home / 99,247.76-136,964.52-56,819.96

Finding the Fourth Proportional to 99,247.76, 136,964.52 and 56,819.96

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Solution

The fourth proportional to 99,247.76, 136,964.52 and 56,819.96 is: 78,413.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,247.76 : 136,964.52 = 56,819.96 : x
  2. Step 2: Convert to fraction form
    99,247.76/136,964.52 = 56,819.96/x
  3. Step 3: Cross multiply
    99,247.76x = 136,964.52 × 56,819.96
  4. Step 4: Simplify right side
    99,247.76x = 7,782,318,547.82
  5. Step 5: Solve for x
    x = 7,782,318,547.82/99,247.76
  6. Step 6: Final answer
    x = 78,413.04

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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.