Home / 74,119.65-111,278.49-42,561.24

Finding the Fourth Proportional to 74,119.65, 111,278.49 and 42,561.24

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Solution

The fourth proportional to 74,119.65, 111,278.49 and 42,561.24 is: 63,898.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,119.65 : 111,278.49 = 42,561.24 : x
  2. Step 2: Convert to fraction form
    74,119.65/111,278.49 = 42,561.24/x
  3. Step 3: Cross multiply
    74,119.65x = 111,278.49 × 42,561.24
  4. Step 4: Simplify right side
    74,119.65x = 4,736,150,519.73
  5. Step 5: Solve for x
    x = 4,736,150,519.73/74,119.65
  6. Step 6: Final answer
    x = 63,898.72

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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.