Home / 68,530.20-102,748.50-36,514.08

Finding the Fourth Proportional to 68,530.20, 102,748.50 and 36,514.08

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Solution

The fourth proportional to 68,530.20, 102,748.50 and 36,514.08 is: 54,746.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,530.20 : 102,748.50 = 36,514.08 : x
  2. Step 2: Convert to fraction form
    68,530.20/102,748.50 = 36,514.08/x
  3. Step 3: Cross multiply
    68,530.20x = 102,748.50 × 36,514.08
  4. Step 4: Simplify right side
    68,530.20x = 3,751,766,948.88
  5. Step 5: Solve for x
    x = 3,751,766,948.88/68,530.20
  6. Step 6: Final answer
    x = 54,746.18

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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.