Home / 34,139.70-51,209.55-31,077.90

Finding the Fourth Proportional to 34,139.70, 51,209.55 and 31,077.90

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Solution

The fourth proportional to 34,139.70, 51,209.55 and 31,077.90 is: 46,616.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,139.70 : 51,209.55 = 31,077.90 : x
  2. Step 2: Convert to fraction form
    34,139.70/51,209.55 = 31,077.90/x
  3. Step 3: Cross multiply
    34,139.70x = 51,209.55 × 31,077.90
  4. Step 4: Simplify right side
    34,139.70x = 1,591,485,273.95
  5. Step 5: Solve for x
    x = 1,591,485,273.95/34,139.70
  6. Step 6: Final answer
    x = 46,616.85

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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.