Home / 74,366.62-111,533.52-21,780.20

Finding the Fourth Proportional to 74,366.62, 111,533.52 and 21,780.20

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Solution

The fourth proportional to 74,366.62, 111,533.52 and 21,780.20 is: 32,665.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,366.62 : 111,533.52 = 21,780.20 : x
  2. Step 2: Convert to fraction form
    74,366.62/111,533.52 = 21,780.20/x
  3. Step 3: Cross multiply
    74,366.62x = 111,533.52 × 21,780.20
  4. Step 4: Simplify right side
    74,366.62x = 2,429,222,372.30
  5. Step 5: Solve for x
    x = 2,429,222,372.30/74,366.62
  6. Step 6: Final answer
    x = 32,665.49

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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.