Home / 55,760.20-83,640.30-51,267.40

Finding the Fourth Proportional to 55,760.20, 83,640.30 and 51,267.40

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Solution

The fourth proportional to 55,760.20, 83,640.30 and 51,267.40 is: 76,901.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,760.20 : 83,640.30 = 51,267.40 : x
  2. Step 2: Convert to fraction form
    55,760.20/83,640.30 = 51,267.40/x
  3. Step 3: Cross multiply
    55,760.20x = 83,640.30 × 51,267.40
  4. Step 4: Simplify right side
    55,760.20x = 4,288,020,716.22
  5. Step 5: Solve for x
    x = 4,288,020,716.22/55,760.20
  6. Step 6: Final answer
    x = 76,901.10

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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.