Home / 79,929.40-119,967.72-40,514.08

Finding the Fourth Proportional to 79,929.40, 119,967.72 and 40,514.08

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Solution

The fourth proportional to 79,929.40, 119,967.72 and 40,514.08 is: 60,808.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,929.40 : 119,967.72 = 40,514.08 : x
  2. Step 2: Convert to fraction form
    79,929.40/119,967.72 = 40,514.08/x
  3. Step 3: Cross multiply
    79,929.40x = 119,967.72 × 40,514.08
  4. Step 4: Simplify right side
    79,929.40x = 4,860,381,805.50
  5. Step 5: Solve for x
    x = 4,860,381,805.50/79,929.40
  6. Step 6: Final answer
    x = 60,808.44

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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.