Home / 84,820.10-127,230.15-55,271.30

Finding the Fourth Proportional to 84,820.10, 127,230.15 and 55,271.30

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Solution

The fourth proportional to 84,820.10, 127,230.15 and 55,271.30 is: 82,906.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,820.10 : 127,230.15 = 55,271.30 : x
  2. Step 2: Convert to fraction form
    84,820.10/127,230.15 = 55,271.30/x
  3. Step 3: Cross multiply
    84,820.10x = 127,230.15 × 55,271.30
  4. Step 4: Simplify right side
    84,820.10x = 7,032,175,789.70
  5. Step 5: Solve for x
    x = 7,032,175,789.70/84,820.10
  6. Step 6: Final answer
    x = 82,906.95

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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.