Home / 76,560.48-114,856.04-42,874.40

Finding the Fourth Proportional to 76,560.48, 114,856.04 and 42,874.40

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Solution

The fourth proportional to 76,560.48, 114,856.04 and 42,874.40 is: 64,320.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,560.48 : 114,856.04 = 42,874.40 : x
  2. Step 2: Convert to fraction form
    76,560.48/114,856.04 = 42,874.40/x
  3. Step 3: Cross multiply
    76,560.48x = 114,856.04 × 42,874.40
  4. Step 4: Simplify right side
    76,560.48x = 4,924,383,227.10
  5. Step 5: Solve for x
    x = 4,924,383,227.10/76,560.48
  6. Step 6: Final answer
    x = 64,320.18

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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.