Home / 66,619.32-99,961.38-31,517.16

Finding the Fourth Proportional to 66,619.32, 99,961.38 and 31,517.16

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Solution

The fourth proportional to 66,619.32, 99,961.38 and 31,517.16 is: 47,291.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,619.32 : 99,961.38 = 31,517.16 : x
  2. Step 2: Convert to fraction form
    66,619.32/99,961.38 = 31,517.16/x
  3. Step 3: Cross multiply
    66,619.32x = 99,961.38 × 31,517.16
  4. Step 4: Simplify right side
    66,619.32x = 3,150,498,807.28
  5. Step 5: Solve for x
    x = 3,150,498,807.28/66,619.32
  6. Step 6: Final answer
    x = 47,291.07

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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.