Home / 52,123.36-78,172.62-20,532.28

Finding the Fourth Proportional to 52,123.36, 78,172.62 and 20,532.28

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Solution

The fourth proportional to 52,123.36, 78,172.62 and 20,532.28 is: 30,793.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,123.36 : 78,172.62 = 20,532.28 : x
  2. Step 2: Convert to fraction form
    52,123.36/78,172.62 = 20,532.28/x
  3. Step 3: Cross multiply
    52,123.36x = 78,172.62 × 20,532.28
  4. Step 4: Simplify right side
    52,123.36x = 1,605,062,122.17
  5. Step 5: Solve for x
    x = 1,605,062,122.17/52,123.36
  6. Step 6: Final answer
    x = 30,793.53

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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.