Home / 73,721.55-110,582.01-21,131.08

Finding the Fourth Proportional to 73,721.55, 110,582.01 and 21,131.08

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Solution

The fourth proportional to 73,721.55, 110,582.01 and 21,131.08 is: 31,696.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,721.55 : 110,582.01 = 21,131.08 : x
  2. Step 2: Convert to fraction form
    73,721.55/110,582.01 = 21,131.08/x
  3. Step 3: Cross multiply
    73,721.55x = 110,582.01 × 21,131.08
  4. Step 4: Simplify right side
    73,721.55x = 2,336,717,299.87
  5. Step 5: Solve for x
    x = 2,336,717,299.87/73,721.55
  6. Step 6: Final answer
    x = 31,696.53

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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.