Home / 51,900.06-77,850.09-20,757.18

Finding the Fourth Proportional to 51,900.06, 77,850.09 and 20,757.18

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Solution

The fourth proportional to 51,900.06, 77,850.09 and 20,757.18 is: 31,135.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,900.06 : 77,850.09 = 20,757.18 : x
  2. Step 2: Convert to fraction form
    51,900.06/77,850.09 = 20,757.18/x
  3. Step 3: Cross multiply
    51,900.06x = 77,850.09 × 20,757.18
  4. Step 4: Simplify right side
    51,900.06x = 1,615,948,331.15
  5. Step 5: Solve for x
    x = 1,615,948,331.15/51,900.06
  6. Step 6: Final answer
    x = 31,135.77

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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.