Home / 51,400.63-77,101.32-18,121.33

Finding the Fourth Proportional to 51,400.63, 77,101.32 and 18,121.33

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Solution

The fourth proportional to 51,400.63, 77,101.32 and 18,121.33 is: 27,182.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,400.63 : 77,101.32 = 18,121.33 : x
  2. Step 2: Convert to fraction form
    51,400.63/77,101.32 = 18,121.33/x
  3. Step 3: Cross multiply
    51,400.63x = 77,101.32 × 18,121.33
  4. Step 4: Simplify right side
    51,400.63x = 1,397,178,463.16
  5. Step 5: Solve for x
    x = 1,397,178,463.16/51,400.63
  6. Step 6: Final answer
    x = 27,182.13

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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.