Home / 42,869.70-64,195.20-34,121.70

Finding the Fourth Proportional to 42,869.70, 64,195.20 and 34,121.70

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Solution

The fourth proportional to 42,869.70, 64,195.20 and 34,121.70 is: 51,095.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,869.70 : 64,195.20 = 34,121.70 : x
  2. Step 2: Convert to fraction form
    42,869.70/64,195.20 = 34,121.70/x
  3. Step 3: Cross multiply
    42,869.70x = 64,195.20 × 34,121.70
  4. Step 4: Simplify right side
    42,869.70x = 2,190,449,355.84
  5. Step 5: Solve for x
    x = 2,190,449,355.84/42,869.70
  6. Step 6: Final answer
    x = 51,095.51

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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.