Home / 68,515.12-102,774.76-18,595.04

Finding the Fourth Proportional to 68,515.12, 102,774.76 and 18,595.04

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Solution

The fourth proportional to 68,515.12, 102,774.76 and 18,595.04 is: 27,893.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,515.12 : 102,774.76 = 18,595.04 : x
  2. Step 2: Convert to fraction form
    68,515.12/102,774.76 = 18,595.04/x
  3. Step 3: Cross multiply
    68,515.12x = 102,774.76 × 18,595.04
  4. Step 4: Simplify right side
    68,515.12x = 1,911,100,773.19
  5. Step 5: Solve for x
    x = 1,911,100,773.19/68,515.12
  6. Step 6: Final answer
    x = 27,893.12

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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.