Home / 91,609.94-126,429.12-51,332.69

Finding the Fourth Proportional to 91,609.94, 126,429.12 and 51,332.69

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Solution

The fourth proportional to 91,609.94, 126,429.12 and 51,332.69 is: 70,843.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,609.94 : 126,429.12 = 51,332.69 : x
  2. Step 2: Convert to fraction form
    91,609.94/126,429.12 = 51,332.69/x
  3. Step 3: Cross multiply
    91,609.94x = 126,429.12 × 51,332.69
  4. Step 4: Simplify right side
    91,609.94x = 6,489,947,140.01
  5. Step 5: Solve for x
    x = 6,489,947,140.01/91,609.94
  6. Step 6: Final answer
    x = 70,843.26

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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.