Home / 51,635.27-77,456.62-21,619.31

Finding the Fourth Proportional to 51,635.27, 77,456.62 and 21,619.31

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Solution

The fourth proportional to 51,635.27, 77,456.62 and 21,619.31 is: 32,430.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,635.27 : 77,456.62 = 21,619.31 : x
  2. Step 2: Convert to fraction form
    51,635.27/77,456.62 = 21,619.31/x
  3. Step 3: Cross multiply
    51,635.27x = 77,456.62 × 21,619.31
  4. Step 4: Simplify right side
    51,635.27x = 1,674,558,319.07
  5. Step 5: Solve for x
    x = 1,674,558,319.07/51,635.27
  6. Step 6: Final answer
    x = 32,430.51

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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.