Home / 55,357.20-83,035.80-51,639.30

Finding the Fourth Proportional to 55,357.20, 83,035.80 and 51,639.30

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Solution

The fourth proportional to 55,357.20, 83,035.80 and 51,639.30 is: 77,458.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,357.20 : 83,035.80 = 51,639.30 : x
  2. Step 2: Convert to fraction form
    55,357.20/83,035.80 = 51,639.30/x
  3. Step 3: Cross multiply
    55,357.20x = 83,035.80 × 51,639.30
  4. Step 4: Simplify right side
    55,357.20x = 4,287,910,586.94
  5. Step 5: Solve for x
    x = 4,287,910,586.94/55,357.20
  6. Step 6: Final answer
    x = 77,458.95

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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.