Home / 66,919.68-100,535.04-39,237.12

Finding the Fourth Proportional to 66,919.68, 100,535.04 and 39,237.12

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Solution

The fourth proportional to 66,919.68, 100,535.04 and 39,237.12 is: 58,946.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,919.68 : 100,535.04 = 39,237.12 : x
  2. Step 2: Convert to fraction form
    66,919.68/100,535.04 = 39,237.12/x
  3. Step 3: Cross multiply
    66,919.68x = 100,535.04 × 39,237.12
  4. Step 4: Simplify right side
    66,919.68x = 3,944,705,428.68
  5. Step 5: Solve for x
    x = 3,944,705,428.68/66,919.68
  6. Step 6: Final answer
    x = 58,946.87

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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.