Home / 74,111.78-111,170.75-21,521.27

Finding the Fourth Proportional to 74,111.78, 111,170.75 and 21,521.27

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Solution

The fourth proportional to 74,111.78, 111,170.75 and 21,521.27 is: 32,282.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,111.78 : 111,170.75 = 21,521.27 : x
  2. Step 2: Convert to fraction form
    74,111.78/111,170.75 = 21,521.27/x
  3. Step 3: Cross multiply
    74,111.78x = 111,170.75 × 21,521.27
  4. Step 4: Simplify right side
    74,111.78x = 2,392,535,063.39
  5. Step 5: Solve for x
    x = 2,392,535,063.39/74,111.78
  6. Step 6: Final answer
    x = 32,282.79

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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.