Home / 97,728.82-134,871.74-54,707.47

Finding the Fourth Proportional to 97,728.82, 134,871.74 and 54,707.47

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Solution

The fourth proportional to 97,728.82, 134,871.74 and 54,707.47 is: 75,499.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,728.82 : 134,871.74 = 54,707.47 : x
  2. Step 2: Convert to fraction form
    97,728.82/134,871.74 = 54,707.47/x
  3. Step 3: Cross multiply
    97,728.82x = 134,871.74 × 54,707.47
  4. Step 4: Simplify right side
    97,728.82x = 7,378,491,669.90
  5. Step 5: Solve for x
    x = 7,378,491,669.90/97,728.82
  6. Step 6: Final answer
    x = 75,499.65

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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.