Home / 57,763.16-86,644.05-18,320.61

Finding the Fourth Proportional to 57,763.16, 86,644.05 and 18,320.61

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Solution

The fourth proportional to 57,763.16, 86,644.05 and 18,320.61 is: 27,480.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,763.16 : 86,644.05 = 18,320.61 : x
  2. Step 2: Convert to fraction form
    57,763.16/86,644.05 = 18,320.61/x
  3. Step 3: Cross multiply
    57,763.16x = 86,644.05 × 18,320.61
  4. Step 4: Simplify right side
    57,763.16x = 1,587,371,848.87
  5. Step 5: Solve for x
    x = 1,587,371,848.87/57,763.16
  6. Step 6: Final answer
    x = 27,480.70

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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.