Home / 87,618.30-120,787.36-62,424.06

Finding the Fourth Proportional to 87,618.30, 120,787.36 and 62,424.06

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Solution

The fourth proportional to 87,618.30, 120,787.36 and 62,424.06 is: 86,055.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,618.30 : 120,787.36 = 62,424.06 : x
  2. Step 2: Convert to fraction form
    87,618.30/120,787.36 = 62,424.06/x
  3. Step 3: Cross multiply
    87,618.30x = 120,787.36 × 62,424.06
  4. Step 4: Simplify right side
    87,618.30x = 7,540,037,407.88
  5. Step 5: Solve for x
    x = 7,540,037,407.88/87,618.30
  6. Step 6: Final answer
    x = 86,055.51

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1.5x scale

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.