Home / 66,617.26-99,876.48-40,315.75

Finding the Fourth Proportional to 66,617.26, 99,876.48 and 40,315.75

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Solution

The fourth proportional to 66,617.26, 99,876.48 and 40,315.75 is: 60,443.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,617.26 : 99,876.48 = 40,315.75 : x
  2. Step 2: Convert to fraction form
    66,617.26/99,876.48 = 40,315.75/x
  3. Step 3: Cross multiply
    66,617.26x = 99,876.48 × 40,315.75
  4. Step 4: Simplify right side
    66,617.26x = 4,026,594,797.68
  5. Step 5: Solve for x
    x = 4,026,594,797.68/66,617.26
  6. Step 6: Final answer
    x = 60,443.72

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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.