Home / 77,952.16-107,503.38-51,085

Finding the Fourth Proportional to 77,952.16, 107,503.38 and 51,085

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Solution

The fourth proportional to 77,952.16, 107,503.38 and 51,085 is: 70,451.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,952.16 : 107,503.38 = 51,085 : x
  2. Step 2: Convert to fraction form
    77,952.16/107,503.38 = 51,085/x
  3. Step 3: Cross multiply
    77,952.16x = 107,503.38 × 51,085
  4. Step 4: Simplify right side
    77,952.16x = 5,491,810,167.30
  5. Step 5: Solve for x
    x = 5,491,810,167.30/77,952.16
  6. Step 6: Final answer
    x = 70,451.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.