Home / 87,949.96-131,442.12-64,307.28

Finding the Fourth Proportional to 87,949.96, 131,442.12 and 64,307.28

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Solution

The fourth proportional to 87,949.96, 131,442.12 and 64,307.28 is: 96,107.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,949.96 : 131,442.12 = 64,307.28 : x
  2. Step 2: Convert to fraction form
    87,949.96/131,442.12 = 64,307.28/x
  3. Step 3: Cross multiply
    87,949.96x = 131,442.12 × 64,307.28
  4. Step 4: Simplify right side
    87,949.96x = 8,452,685,214.63
  5. Step 5: Solve for x
    x = 8,452,685,214.63/87,949.96
  6. Step 6: Final answer
    x = 96,107.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.