Home / 74,760.10-112,013.21-45,115.65

Finding the Fourth Proportional to 74,760.10, 112,013.21 and 45,115.65

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Solution

The fourth proportional to 74,760.10, 112,013.21 and 45,115.65 is: 67,596.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,760.10 : 112,013.21 = 45,115.65 : x
  2. Step 2: Convert to fraction form
    74,760.10/112,013.21 = 45,115.65/x
  3. Step 3: Cross multiply
    74,760.10x = 112,013.21 × 45,115.65
  4. Step 4: Simplify right side
    74,760.10x = 5,053,548,777.74
  5. Step 5: Solve for x
    x = 5,053,548,777.74/74,760.10
  6. Step 6: Final answer
    x = 67,596.87

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1.5x scale

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.