Home / 66,611.30-99,830.28-27,122.18

Finding the Fourth Proportional to 66,611.30, 99,830.28 and 27,122.18

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Solution

The fourth proportional to 66,611.30, 99,830.28 and 27,122.18 is: 40,647.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,611.30 : 99,830.28 = 27,122.18 : x
  2. Step 2: Convert to fraction form
    66,611.30/99,830.28 = 27,122.18/x
  3. Step 3: Cross multiply
    66,611.30x = 99,830.28 × 27,122.18
  4. Step 4: Simplify right side
    66,611.30x = 2,707,614,823.61
  5. Step 5: Solve for x
    x = 2,707,614,823.61/66,611.30
  6. Step 6: Final answer
    x = 40,647.98

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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.