Home / 40,739.13-61,121.99-19,681.59

Finding the Fourth Proportional to 40,739.13, 61,121.99 and 19,681.59

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Solution

The fourth proportional to 40,739.13, 61,121.99 and 19,681.59 is: 29,528.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,739.13 : 61,121.99 = 19,681.59 : x
  2. Step 2: Convert to fraction form
    40,739.13/61,121.99 = 19,681.59/x
  3. Step 3: Cross multiply
    40,739.13x = 61,121.99 × 19,681.59
  4. Step 4: Simplify right side
    40,739.13x = 1,202,978,052.57
  5. Step 5: Solve for x
    x = 1,202,978,052.57/40,739.13
  6. Step 6: Final answer
    x = 29,528.81

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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.