Home / 74,272.91-111,416.04-20,965.46

Finding the Fourth Proportional to 74,272.91, 111,416.04 and 20,965.46

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Solution

The fourth proportional to 74,272.91, 111,416.04 and 20,965.46 is: 31,450.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,272.91 : 111,416.04 = 20,965.46 : x
  2. Step 2: Convert to fraction form
    74,272.91/111,416.04 = 20,965.46/x
  3. Step 3: Cross multiply
    74,272.91x = 111,416.04 × 20,965.46
  4. Step 4: Simplify right side
    74,272.91x = 2,335,887,972.90
  5. Step 5: Solve for x
    x = 2,335,887,972.90/74,272.91
  6. Step 6: Final answer
    x = 31,450.07

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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.