Home / 74,364.62-111,530.52-21,778.20

Finding the Fourth Proportional to 74,364.62, 111,530.52 and 21,778.20

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Solution

The fourth proportional to 74,364.62, 111,530.52 and 21,778.20 is: 32,662.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,364.62 : 111,530.52 = 21,778.20 : x
  2. Step 2: Convert to fraction form
    74,364.62/111,530.52 = 21,778.20/x
  3. Step 3: Cross multiply
    74,364.62x = 111,530.52 × 21,778.20
  4. Step 4: Simplify right side
    74,364.62x = 2,428,933,970.66
  5. Step 5: Solve for x
    x = 2,428,933,970.66/74,364.62
  6. Step 6: Final answer
    x = 32,662.49

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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.