Home / 87,650.64-120,973.08-84,734.64

Finding the Fourth Proportional to 87,650.64, 120,973.08 and 84,734.64

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Solution

The fourth proportional to 87,650.64, 120,973.08 and 84,734.64 is: 116,948.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,650.64 : 120,973.08 = 84,734.64 : x
  2. Step 2: Convert to fraction form
    87,650.64/120,973.08 = 84,734.64/x
  3. Step 3: Cross multiply
    87,650.64x = 120,973.08 × 84,734.64
  4. Step 4: Simplify right side
    87,650.64x = 10,250,610,383.49
  5. Step 5: Solve for x
    x = 10,250,610,383.49/87,650.64
  6. Step 6: Final answer
    x = 116,948.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.