Home / 51,866.18-77,781.96-20,268.02

Finding the Fourth Proportional to 51,866.18, 77,781.96 and 20,268.02

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Solution

The fourth proportional to 51,866.18, 77,781.96 and 20,268.02 is: 30,395.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,866.18 : 77,781.96 = 20,268.02 : x
  2. Step 2: Convert to fraction form
    51,866.18/77,781.96 = 20,268.02/x
  3. Step 3: Cross multiply
    51,866.18x = 77,781.96 × 20,268.02
  4. Step 4: Simplify right side
    51,866.18x = 1,576,486,320.92
  5. Step 5: Solve for x
    x = 1,576,486,320.92/51,866.18
  6. Step 6: Final answer
    x = 30,395.27

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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.