Home / 91,512.32-126,289.14-51,225.08

Finding the Fourth Proportional to 91,512.32, 126,289.14 and 51,225.08

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Solution

The fourth proportional to 91,512.32, 126,289.14 and 51,225.08 is: 70,691.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,512.32 : 126,289.14 = 51,225.08 : x
  2. Step 2: Convert to fraction form
    91,512.32/126,289.14 = 51,225.08/x
  3. Step 3: Cross multiply
    91,512.32x = 126,289.14 × 51,225.08
  4. Step 4: Simplify right side
    91,512.32x = 6,469,171,299.63
  5. Step 5: Solve for x
    x = 6,469,171,299.63/91,512.32
  6. Step 6: Final answer
    x = 70,691.81

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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.