Home / 97,912.24-135,118.56-55,478.86

Finding the Fourth Proportional to 97,912.24, 135,118.56 and 55,478.86

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Solution

The fourth proportional to 97,912.24, 135,118.56 and 55,478.86 is: 76,560.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,912.24 : 135,118.56 = 55,478.86 : x
  2. Step 2: Convert to fraction form
    97,912.24/135,118.56 = 55,478.86/x
  3. Step 3: Cross multiply
    97,912.24x = 135,118.56 × 55,478.86
  4. Step 4: Simplify right side
    97,912.24x = 7,496,223,673.64
  5. Step 5: Solve for x
    x = 7,496,223,673.64/97,912.24
  6. Step 6: Final answer
    x = 76,560.64

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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.