Home / 55,638.50-83,512.42-40,805.17

Finding the Fourth Proportional to 55,638.50, 83,512.42 and 40,805.17

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Solution

The fourth proportional to 55,638.50, 83,512.42 and 40,805.17 is: 61,247.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,638.50 : 83,512.42 = 40,805.17 : x
  2. Step 2: Convert to fraction form
    55,638.50/83,512.42 = 40,805.17/x
  3. Step 3: Cross multiply
    55,638.50x = 83,512.42 × 40,805.17
  4. Step 4: Simplify right side
    55,638.50x = 3,407,738,184.42
  5. Step 5: Solve for x
    x = 3,407,738,184.42/55,638.50
  6. Step 6: Final answer
    x = 61,247.85

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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.