Home / 51,921.36-77,830.28-21,943.16

Finding the Fourth Proportional to 51,921.36, 77,830.28 and 21,943.16

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Solution

The fourth proportional to 51,921.36, 77,830.28 and 21,943.16 is: 32,892.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,921.36 : 77,830.28 = 21,943.16 : x
  2. Step 2: Convert to fraction form
    51,921.36/77,830.28 = 21,943.16/x
  3. Step 3: Cross multiply
    51,921.36x = 77,830.28 × 21,943.16
  4. Step 4: Simplify right side
    51,921.36x = 1,707,842,286.88
  5. Step 5: Solve for x
    x = 1,707,842,286.88/51,921.36
  6. Step 6: Final answer
    x = 32,892.87

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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.