Home / 75,225.20-112,908.28-39,712.88

Finding the Fourth Proportional to 75,225.20, 112,908.28 and 39,712.88

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Solution

The fourth proportional to 75,225.20, 112,908.28 and 39,712.88 is: 59,606.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,225.20 : 112,908.28 = 39,712.88 : x
  2. Step 2: Convert to fraction form
    75,225.20/112,908.28 = 39,712.88/x
  3. Step 3: Cross multiply
    75,225.20x = 112,908.28 × 39,712.88
  4. Step 4: Simplify right side
    75,225.20x = 4,483,912,974.65
  5. Step 5: Solve for x
    x = 4,483,912,974.65/75,225.20
  6. Step 6: Final answer
    x = 59,606.53

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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.