Home / 76,929.12-115,398.54-32,550.03

Finding the Fourth Proportional to 76,929.12, 115,398.54 and 32,550.03

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Solution

The fourth proportional to 76,929.12, 115,398.54 and 32,550.03 is: 48,827.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,929.12 : 115,398.54 = 32,550.03 : x
  2. Step 2: Convert to fraction form
    76,929.12/115,398.54 = 32,550.03/x
  3. Step 3: Cross multiply
    76,929.12x = 115,398.54 × 32,550.03
  4. Step 4: Simplify right side
    76,929.12x = 3,756,225,938.96
  5. Step 5: Solve for x
    x = 3,756,225,938.96/76,929.12
  6. Step 6: Final answer
    x = 48,827.10

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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.