Home / 207,570.75-311,356.43-57,811.47

Finding the Fourth Proportional to 207,570.75, 311,356.43 and 57,811.47

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Solution

The fourth proportional to 207,570.75, 311,356.43 and 57,811.47 is: 86,717.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,570.75 : 311,356.43 = 57,811.47 : x
  2. Step 2: Convert to fraction form
    207,570.75/311,356.43 = 57,811.47/x
  3. Step 3: Cross multiply
    207,570.75x = 311,356.43 × 57,811.47
  4. Step 4: Simplify right side
    207,570.75x = 17,999,972,623.19
  5. Step 5: Solve for x
    x = 17,999,972,623.19/207,570.75
  6. Step 6: Final answer
    x = 86,717.29

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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.