Home / 66,398.06-99,597-30,839.90

Finding the Fourth Proportional to 66,398.06, 99,597 and 30,839.90

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Solution

The fourth proportional to 66,398.06, 99,597 and 30,839.90 is: 46,259.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,398.06 : 99,597 = 30,839.90 : x
  2. Step 2: Convert to fraction form
    66,398.06/99,597 = 30,839.90/x
  3. Step 3: Cross multiply
    66,398.06x = 99,597 × 30,839.90
  4. Step 4: Simplify right side
    66,398.06x = 3,071,561,520.30
  5. Step 5: Solve for x
    x = 3,071,561,520.30/66,398.06
  6. Step 6: Final answer
    x = 46,259.81

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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.