Home / 55,926.97-83,890.43-20,390.95

Finding the Fourth Proportional to 55,926.97, 83,890.43 and 20,390.95

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Solution

The fourth proportional to 55,926.97, 83,890.43 and 20,390.95 is: 30,586.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,926.97 : 83,890.43 = 20,390.95 : x
  2. Step 2: Convert to fraction form
    55,926.97/83,890.43 = 20,390.95/x
  3. Step 3: Cross multiply
    55,926.97x = 83,890.43 × 20,390.95
  4. Step 4: Simplify right side
    55,926.97x = 1,710,605,563.61
  5. Step 5: Solve for x
    x = 1,710,605,563.61/55,926.97
  6. Step 6: Final answer
    x = 30,586.42

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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.