Home / 57,711.42-86,562.80-20,271.82

Finding the Fourth Proportional to 57,711.42, 86,562.80 and 20,271.82

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Solution

The fourth proportional to 57,711.42, 86,562.80 and 20,271.82 is: 30,406.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,711.42 : 86,562.80 = 20,271.82 : x
  2. Step 2: Convert to fraction form
    57,711.42/86,562.80 = 20,271.82/x
  3. Step 3: Cross multiply
    57,711.42x = 86,562.80 × 20,271.82
  4. Step 4: Simplify right side
    57,711.42x = 1,754,785,500.30
  5. Step 5: Solve for x
    x = 1,754,785,500.30/57,711.42
  6. Step 6: Final answer
    x = 30,406.21

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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.