Home / 74,343.42-111,500.55-21,738.78

Finding the Fourth Proportional to 74,343.42, 111,500.55 and 21,738.78

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Solution

The fourth proportional to 74,343.42, 111,500.55 and 21,738.78 is: 32,603.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,343.42 : 111,500.55 = 21,738.78 : x
  2. Step 2: Convert to fraction form
    74,343.42/111,500.55 = 21,738.78/x
  3. Step 3: Cross multiply
    74,343.42x = 111,500.55 × 21,738.78
  4. Step 4: Simplify right side
    74,343.42x = 2,423,885,926.33
  5. Step 5: Solve for x
    x = 2,423,885,926.33/74,343.42
  6. Step 6: Final answer
    x = 32,603.91

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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.