Home / 45,469.10-68,215.80-40,572.65

Finding the Fourth Proportional to 45,469.10, 68,215.80 and 40,572.65

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Solution

The fourth proportional to 45,469.10, 68,215.80 and 40,572.65 is: 60,869.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,469.10 : 68,215.80 = 40,572.65 : x
  2. Step 2: Convert to fraction form
    45,469.10/68,215.80 = 40,572.65/x
  3. Step 3: Cross multiply
    45,469.10x = 68,215.80 × 40,572.65
  4. Step 4: Simplify right side
    45,469.10x = 2,767,695,777.87
  5. Step 5: Solve for x
    x = 2,767,695,777.87/45,469.10
  6. Step 6: Final answer
    x = 60,869.82

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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.