Home / 74,112.10-111,171.22-21,521.59

Finding the Fourth Proportional to 74,112.10, 111,171.22 and 21,521.59

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Solution

The fourth proportional to 74,112.10, 111,171.22 and 21,521.59 is: 32,283.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,112.10 : 111,171.22 = 21,521.59 : x
  2. Step 2: Convert to fraction form
    74,112.10/111,171.22 = 21,521.59/x
  3. Step 3: Cross multiply
    74,112.10x = 111,171.22 × 21,521.59
  4. Step 4: Simplify right side
    74,112.10x = 2,392,581,084.91
  5. Step 5: Solve for x
    x = 2,392,581,084.91/74,112.10
  6. Step 6: Final answer
    x = 32,283.27

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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.