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Finding the Fourth Proportional to 55,223.40, 82,835.10 and 40,351.80

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Solution

The fourth proportional to 55,223.40, 82,835.10 and 40,351.80 is: 60,527.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,223.40 : 82,835.10 = 40,351.80 : x
  2. Step 2: Convert to fraction form
    55,223.40/82,835.10 = 40,351.80/x
  3. Step 3: Cross multiply
    55,223.40x = 82,835.10 × 40,351.80
  4. Step 4: Simplify right side
    55,223.40x = 3,342,545,388.18
  5. Step 5: Solve for x
    x = 3,342,545,388.18/55,223.40
  6. Step 6: Final answer
    x = 60,527.70

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1.5x scale

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.