Home / 91,628.84-126,439.34-51,344.30

Finding the Fourth Proportional to 91,628.84, 126,439.34 and 51,344.30

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Solution

The fourth proportional to 91,628.84, 126,439.34 and 51,344.30 is: 70,850.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,628.84 : 126,439.34 = 51,344.30 : x
  2. Step 2: Convert to fraction form
    91,628.84/126,439.34 = 51,344.30/x
  3. Step 3: Cross multiply
    91,628.84x = 126,439.34 × 51,344.30
  4. Step 4: Simplify right side
    91,628.84x = 6,491,939,464.14
  5. Step 5: Solve for x
    x = 6,491,939,464.14/91,628.84
  6. Step 6: Final answer
    x = 70,850.39

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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.