Home / 67,766.06-101,644.20-21,017.72

Finding the Fourth Proportional to 67,766.06, 101,644.20 and 21,017.72

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Solution

The fourth proportional to 67,766.06, 101,644.20 and 21,017.72 is: 31,525.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,766.06 : 101,644.20 = 21,017.72 : x
  2. Step 2: Convert to fraction form
    67,766.06/101,644.20 = 21,017.72/x
  3. Step 3: Cross multiply
    67,766.06x = 101,644.20 × 21,017.72
  4. Step 4: Simplify right side
    67,766.06x = 2,136,328,827.00
  5. Step 5: Solve for x
    x = 2,136,328,827.00/67,766.06
  6. Step 6: Final answer
    x = 31,525.06

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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.