Home / 45,642.85-68,464.28-40,631.65

Finding the Fourth Proportional to 45,642.85, 68,464.28 and 40,631.65

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Solution

The fourth proportional to 45,642.85, 68,464.28 and 40,631.65 is: 60,947.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,642.85 : 68,464.28 = 40,631.65 : x
  2. Step 2: Convert to fraction form
    45,642.85/68,464.28 = 40,631.65/x
  3. Step 3: Cross multiply
    45,642.85x = 68,464.28 × 40,631.65
  4. Step 4: Simplify right side
    45,642.85x = 2,781,816,459.30
  5. Step 5: Solve for x
    x = 2,781,816,459.30/45,642.85
  6. Step 6: Final answer
    x = 60,947.48

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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.