Home / 52,131.66-78,212.07-20,522.22

Finding the Fourth Proportional to 52,131.66, 78,212.07 and 20,522.22

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Solution

The fourth proportional to 52,131.66, 78,212.07 and 20,522.22 is: 30,789.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,131.66 : 78,212.07 = 20,522.22 : x
  2. Step 2: Convert to fraction form
    52,131.66/78,212.07 = 20,522.22/x
  3. Step 3: Cross multiply
    52,131.66x = 78,212.07 × 20,522.22
  4. Step 4: Simplify right side
    52,131.66x = 1,605,085,307.20
  5. Step 5: Solve for x
    x = 1,605,085,307.20/52,131.66
  6. Step 6: Final answer
    x = 30,789.07

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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.