Home / 51,400.77-77,109.32-18,131.01

Finding the Fourth Proportional to 51,400.77, 77,109.32 and 18,131.01

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Solution

The fourth proportional to 51,400.77, 77,109.32 and 18,131.01 is: 27,199.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,400.77 : 77,109.32 = 18,131.01 : x
  2. Step 2: Convert to fraction form
    51,400.77/77,109.32 = 18,131.01/x
  3. Step 3: Cross multiply
    51,400.77x = 77,109.32 × 18,131.01
  4. Step 4: Simplify right side
    51,400.77x = 1,398,069,761.36
  5. Step 5: Solve for x
    x = 1,398,069,761.36/51,400.77
  6. Step 6: Final answer
    x = 27,199.39

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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.