Home / 91,168.36-136,735.20-38,614.72

Finding the Fourth Proportional to 91,168.36, 136,735.20 and 38,614.72

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Solution

The fourth proportional to 91,168.36, 136,735.20 and 38,614.72 is: 57,914.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,168.36 : 136,735.20 = 38,614.72 : x
  2. Step 2: Convert to fraction form
    91,168.36/136,735.20 = 38,614.72/x
  3. Step 3: Cross multiply
    91,168.36x = 136,735.20 × 38,614.72
  4. Step 4: Simplify right side
    91,168.36x = 5,279,991,462.14
  5. Step 5: Solve for x
    x = 5,279,991,462.14/91,168.36
  6. Step 6: Final answer
    x = 57,914.74

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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.