Home / 55,418.80-83,128.20-48,201.70

Finding the Fourth Proportional to 55,418.80, 83,128.20 and 48,201.70

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Solution

The fourth proportional to 55,418.80, 83,128.20 and 48,201.70 is: 72,302.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,418.80 : 83,128.20 = 48,201.70 : x
  2. Step 2: Convert to fraction form
    55,418.80/83,128.20 = 48,201.70/x
  3. Step 3: Cross multiply
    55,418.80x = 83,128.20 × 48,201.70
  4. Step 4: Simplify right side
    55,418.80x = 4,006,920,557.94
  5. Step 5: Solve for x
    x = 4,006,920,557.94/55,418.80
  6. Step 6: Final answer
    x = 72,302.55

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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.