Home / 55,903.40-83,860.56-20,834.85

Finding the Fourth Proportional to 55,903.40, 83,860.56 and 20,834.85

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Solution

The fourth proportional to 55,903.40, 83,860.56 and 20,834.85 is: 31,254.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,903.40 : 83,860.56 = 20,834.85 : x
  2. Step 2: Convert to fraction form
    55,903.40/83,860.56 = 20,834.85/x
  3. Step 3: Cross multiply
    55,903.40x = 83,860.56 × 20,834.85
  4. Step 4: Simplify right side
    55,903.40x = 1,747,222,188.52
  5. Step 5: Solve for x
    x = 1,747,222,188.52/55,903.40
  6. Step 6: Final answer
    x = 31,254.31

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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.