Home / 55,716.27-83,586.71-20,655.93

Finding the Fourth Proportional to 55,716.27, 83,586.71 and 20,655.93

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Solution

The fourth proportional to 55,716.27, 83,586.71 and 20,655.93 is: 30,988.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,716.27 : 83,586.71 = 20,655.93 : x
  2. Step 2: Convert to fraction form
    55,716.27/83,586.71 = 20,655.93/x
  3. Step 3: Cross multiply
    55,716.27x = 83,586.71 × 20,655.93
  4. Step 4: Simplify right side
    55,716.27x = 1,726,560,891.42
  5. Step 5: Solve for x
    x = 1,726,560,891.42/55,716.27
  6. Step 6: Final answer
    x = 30,988.45

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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.