Home / 51,707.16-77,541.59-18,418.38

Finding the Fourth Proportional to 51,707.16, 77,541.59 and 18,418.38

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Solution

The fourth proportional to 51,707.16, 77,541.59 and 18,418.38 is: 27,620.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,707.16 : 77,541.59 = 18,418.38 : x
  2. Step 2: Convert to fraction form
    51,707.16/77,541.59 = 18,418.38/x
  3. Step 3: Cross multiply
    51,707.16x = 77,541.59 × 18,418.38
  4. Step 4: Simplify right side
    51,707.16x = 1,428,190,378.33
  5. Step 5: Solve for x
    x = 1,428,190,378.33/51,707.16
  6. Step 6: Final answer
    x = 27,620.75

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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.