Home / 55,134.80-82,702.20-34,139.60

Finding the Fourth Proportional to 55,134.80, 82,702.20 and 34,139.60

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Solution

The fourth proportional to 55,134.80, 82,702.20 and 34,139.60 is: 51,209.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,134.80 : 82,702.20 = 34,139.60 : x
  2. Step 2: Convert to fraction form
    55,134.80/82,702.20 = 34,139.60/x
  3. Step 3: Cross multiply
    55,134.80x = 82,702.20 × 34,139.60
  4. Step 4: Simplify right side
    55,134.80x = 2,823,420,027.12
  5. Step 5: Solve for x
    x = 2,823,420,027.12/55,134.80
  6. Step 6: Final answer
    x = 51,209.40

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1.5x scale

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.