Home / 51,581.52-77,376.42-21,999.65

Finding the Fourth Proportional to 51,581.52, 77,376.42 and 21,999.65

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Solution

The fourth proportional to 51,581.52, 77,376.42 and 21,999.65 is: 33,001.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,581.52 : 77,376.42 = 21,999.65 : x
  2. Step 2: Convert to fraction form
    51,581.52/77,376.42 = 21,999.65/x
  3. Step 3: Cross multiply
    51,581.52x = 77,376.42 × 21,999.65
  4. Step 4: Simplify right side
    51,581.52x = 1,702,253,771.37
  5. Step 5: Solve for x
    x = 1,702,253,771.37/51,581.52
  6. Step 6: Final answer
    x = 33,001.23

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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.