Home / 55,861.97-83,766.55-20,298.50

Finding the Fourth Proportional to 55,861.97, 83,766.55 and 20,298.50

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Solution

The fourth proportional to 55,861.97, 83,766.55 and 20,298.50 is: 30,438.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,861.97 : 83,766.55 = 20,298.50 : x
  2. Step 2: Convert to fraction form
    55,861.97/83,766.55 = 20,298.50/x
  3. Step 3: Cross multiply
    55,861.97x = 83,766.55 × 20,298.50
  4. Step 4: Simplify right side
    55,861.97x = 1,700,335,315.18
  5. Step 5: Solve for x
    x = 1,700,335,315.18/55,861.97
  6. Step 6: Final answer
    x = 30,438.16

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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.