Home / 42,065.80-62,989.26-40,819.18

Finding the Fourth Proportional to 42,065.80, 62,989.26 and 40,819.18

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Solution

The fourth proportional to 42,065.80, 62,989.26 and 40,819.18 is: 61,122.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,065.80 : 62,989.26 = 40,819.18 : x
  2. Step 2: Convert to fraction form
    42,065.80/62,989.26 = 40,819.18/x
  3. Step 3: Cross multiply
    42,065.80x = 62,989.26 × 40,819.18
  4. Step 4: Simplify right side
    42,065.80x = 2,571,169,942.01
  5. Step 5: Solve for x
    x = 2,571,169,942.01/42,065.80
  6. Step 6: Final answer
    x = 61,122.57

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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.