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Finding the Fourth Proportional to 91,762.92, 126,642.42 and 51,487.56

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Solution

The fourth proportional to 91,762.92, 126,642.42 and 51,487.56 is: 71,058.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,762.92 : 126,642.42 = 51,487.56 : x
  2. Step 2: Convert to fraction form
    91,762.92/126,642.42 = 51,487.56/x
  3. Step 3: Cross multiply
    91,762.92x = 126,642.42 × 51,487.56
  4. Step 4: Simplify right side
    91,762.92x = 6,520,509,198.30
  5. Step 5: Solve for x
    x = 6,520,509,198.30/91,762.92
  6. Step 6: Final answer
    x = 71,058.21

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1.5x scale

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.