Home / 68,209.60-102,307.28-18,295.04

Finding the Fourth Proportional to 68,209.60, 102,307.28 and 18,295.04

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Solution

The fourth proportional to 68,209.60, 102,307.28 and 18,295.04 is: 27,440.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,209.60 : 102,307.28 = 18,295.04 : x
  2. Step 2: Convert to fraction form
    68,209.60/102,307.28 = 18,295.04/x
  3. Step 3: Cross multiply
    68,209.60x = 102,307.28 × 18,295.04
  4. Step 4: Simplify right side
    68,209.60x = 1,871,715,779.89
  5. Step 5: Solve for x
    x = 1,871,715,779.89/68,209.60
  6. Step 6: Final answer
    x = 27,440.65

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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.