Home / 74,412.44-111,624.38-21,103.50

Finding the Fourth Proportional to 74,412.44, 111,624.38 and 21,103.50

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Solution

The fourth proportional to 74,412.44, 111,624.38 and 21,103.50 is: 31,656.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,412.44 : 111,624.38 = 21,103.50 : x
  2. Step 2: Convert to fraction form
    74,412.44/111,624.38 = 21,103.50/x
  3. Step 3: Cross multiply
    74,412.44x = 111,624.38 × 21,103.50
  4. Step 4: Simplify right side
    74,412.44x = 2,355,664,997.81
  5. Step 5: Solve for x
    x = 2,355,664,997.81/74,412.44
  6. Step 6: Final answer
    x = 31,656.87

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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.