Home / 51,218.29-76,863.35-21,232.99

Finding the Fourth Proportional to 51,218.29, 76,863.35 and 21,232.99

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Solution

The fourth proportional to 51,218.29, 76,863.35 and 21,232.99 is: 31,864.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,218.29 : 76,863.35 = 21,232.99 : x
  2. Step 2: Convert to fraction form
    51,218.29/76,863.35 = 21,232.99/x
  3. Step 3: Cross multiply
    51,218.29x = 76,863.35 × 21,232.99
  4. Step 4: Simplify right side
    51,218.29x = 1,632,038,741.92
  5. Step 5: Solve for x
    x = 1,632,038,741.92/51,218.29
  6. Step 6: Final answer
    x = 31,864.37

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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.