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Finding the Fourth Proportional to 91,847.60, 126,741.02 and 51,553.49

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Solution

The fourth proportional to 91,847.60, 126,741.02 and 51,553.49 is: 71,138.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,847.60 : 126,741.02 = 51,553.49 : x
  2. Step 2: Convert to fraction form
    91,847.60/126,741.02 = 51,553.49/x
  3. Step 3: Cross multiply
    91,847.60x = 126,741.02 × 51,553.49
  4. Step 4: Simplify right side
    91,847.60x = 6,533,941,444.64
  5. Step 5: Solve for x
    x = 6,533,941,444.64/91,847.60
  6. Step 6: Final answer
    x = 71,138.95

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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.