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Finding the Fourth Proportional to 91,657.82, 126,485.50 and 53,414.88

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Solution

The fourth proportional to 91,657.82, 126,485.50 and 53,414.88 is: 73,711.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,657.82 : 126,485.50 = 53,414.88 : x
  2. Step 2: Convert to fraction form
    91,657.82/126,485.50 = 53,414.88/x
  3. Step 3: Cross multiply
    91,657.82x = 126,485.50 × 53,414.88
  4. Step 4: Simplify right side
    91,657.82x = 6,756,207,804.24
  5. Step 5: Solve for x
    x = 6,756,207,804.24/91,657.82
  6. Step 6: Final answer
    x = 73,711.20

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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.