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Finding the Fourth Proportional to 91,425.01, 126,178.19 and 51,141.01

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Solution

The fourth proportional to 91,425.01, 126,178.19 and 51,141.01 is: 70,581.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,425.01 : 126,178.19 = 51,141.01 : x
  2. Step 2: Convert to fraction form
    91,425.01/126,178.19 = 51,141.01/x
  3. Step 3: Cross multiply
    91,425.01x = 126,178.19 × 51,141.01
  4. Step 4: Simplify right side
    91,425.01x = 6,452,879,820.87
  5. Step 5: Solve for x
    x = 6,452,879,820.87/91,425.01
  6. Step 6: Final answer
    x = 70,581.12

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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.