Home / 42,868.20-64,288.66-40,069.56

Finding the Fourth Proportional to 42,868.20, 64,288.66 and 40,069.56

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Solution

The fourth proportional to 42,868.20, 64,288.66 and 40,069.56 is: 60,091.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,868.20 : 64,288.66 = 40,069.56 : x
  2. Step 2: Convert to fraction form
    42,868.20/64,288.66 = 40,069.56/x
  3. Step 3: Cross multiply
    42,868.20x = 64,288.66 × 40,069.56
  4. Step 4: Simplify right side
    42,868.20x = 2,576,018,128.19
  5. Step 5: Solve for x
    x = 2,576,018,128.19/42,868.20
  6. Step 6: Final answer
    x = 60,091.59

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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.