Home / 91,400.50-126,147.36-53,667.46

Finding the Fourth Proportional to 91,400.50, 126,147.36 and 53,667.46

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Solution

The fourth proportional to 91,400.50, 126,147.36 and 53,667.46 is: 74,069.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,400.50 : 126,147.36 = 53,667.46 : x
  2. Step 2: Convert to fraction form
    91,400.50/126,147.36 = 53,667.46/x
  3. Step 3: Cross multiply
    91,400.50x = 126,147.36 × 53,667.46
  4. Step 4: Simplify right side
    91,400.50x = 6,770,008,396.91
  5. Step 5: Solve for x
    x = 6,770,008,396.91/91,400.50
  6. Step 6: Final answer
    x = 74,069.71

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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.