Home / 76,990.40-115,488.04-24,400.34

Finding the Fourth Proportional to 76,990.40, 115,488.04 and 24,400.34

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Solution

The fourth proportional to 76,990.40, 115,488.04 and 24,400.34 is: 36,601.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,990.40 : 115,488.04 = 24,400.34 : x
  2. Step 2: Convert to fraction form
    76,990.40/115,488.04 = 24,400.34/x
  3. Step 3: Cross multiply
    76,990.40x = 115,488.04 × 24,400.34
  4. Step 4: Simplify right side
    76,990.40x = 2,817,947,669.65
  5. Step 5: Solve for x
    x = 2,817,947,669.65/76,990.40
  6. Step 6: Final answer
    x = 36,601.29

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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.