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Finding the Fourth Proportional to 91,599.95, 126,405.65 and 51,313.44

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Solution

The fourth proportional to 91,599.95, 126,405.65 and 51,313.44 is: 70,811.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,599.95 : 126,405.65 = 51,313.44 : x
  2. Step 2: Convert to fraction form
    91,599.95/126,405.65 = 51,313.44/x
  3. Step 3: Cross multiply
    91,599.95x = 126,405.65 × 51,313.44
  4. Step 4: Simplify right side
    91,599.95x = 6,486,308,480.37
  5. Step 5: Solve for x
    x = 6,486,308,480.37/91,599.95
  6. Step 6: Final answer
    x = 70,811.27

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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.