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Finding the Fourth Proportional to 80,340, 120,552.04 and 58,335.12

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Solution

The fourth proportional to 80,340, 120,552.04 and 58,335.12 is: 87,533.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,340 : 120,552.04 = 58,335.12 : x
  2. Step 2: Convert to fraction form
    80,340/120,552.04 = 58,335.12/x
  3. Step 3: Cross multiply
    80,340x = 120,552.04 × 58,335.12
  4. Step 4: Simplify right side
    80,340x = 7,032,417,719.64
  5. Step 5: Solve for x
    x = 7,032,417,719.64/80,340
  6. Step 6: Final answer
    x = 87,533.21

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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.