Home / 91,423.07-126,171.23-51,145.82

Finding the Fourth Proportional to 91,423.07, 126,171.23 and 51,145.82

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Solution

The fourth proportional to 91,423.07, 126,171.23 and 51,145.82 is: 70,585.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,423.07 : 126,171.23 = 51,145.82 : x
  2. Step 2: Convert to fraction form
    91,423.07/126,171.23 = 51,145.82/x
  3. Step 3: Cross multiply
    91,423.07x = 126,171.23 × 51,145.82
  4. Step 4: Simplify right side
    91,423.07x = 6,453,131,018.76
  5. Step 5: Solve for x
    x = 6,453,131,018.76/91,423.07
  6. Step 6: Final answer
    x = 70,585.37

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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.