Home / 74,005.20-111,007.80-51,454.80

Finding the Fourth Proportional to 74,005.20, 111,007.80 and 51,454.80

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Solution

The fourth proportional to 74,005.20, 111,007.80 and 51,454.80 is: 77,182.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,005.20 : 111,007.80 = 51,454.80 : x
  2. Step 2: Convert to fraction form
    74,005.20/111,007.80 = 51,454.80/x
  3. Step 3: Cross multiply
    74,005.20x = 111,007.80 × 51,454.80
  4. Step 4: Simplify right side
    74,005.20x = 5,711,884,147.44
  5. Step 5: Solve for x
    x = 5,711,884,147.44/74,005.20
  6. Step 6: Final answer
    x = 77,182.20

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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.