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Finding the Fourth Proportional to 70,061, 96,571.20 and 47,391.72

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Solution

The fourth proportional to 70,061, 96,571.20 and 47,391.72 is: 65,324.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,061 : 96,571.20 = 47,391.72 : x
  2. Step 2: Convert to fraction form
    70,061/96,571.20 = 47,391.72/x
  3. Step 3: Cross multiply
    70,061x = 96,571.20 × 47,391.72
  4. Step 4: Simplify right side
    70,061x = 4,576,675,270.46
  5. Step 5: Solve for x
    x = 4,576,675,270.46/70,061
  6. Step 6: Final answer
    x = 65,324.15

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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.