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Finding the Fourth Proportional to 91,697.56, 126,542.59 and 51,411.19

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Solution

The fourth proportional to 91,697.56, 126,542.59 and 51,411.19 is: 70,947.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,697.56 : 126,542.59 = 51,411.19 : x
  2. Step 2: Convert to fraction form
    91,697.56/126,542.59 = 51,411.19/x
  3. Step 3: Cross multiply
    91,697.56x = 126,542.59 × 51,411.19
  4. Step 4: Simplify right side
    91,697.56x = 6,505,705,137.58
  5. Step 5: Solve for x
    x = 6,505,705,137.58/91,697.56
  6. Step 6: Final answer
    x = 70,947.42

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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.