Home / 91,960.12-126,908.72-51,673.76

Finding the Fourth Proportional to 91,960.12, 126,908.72 and 51,673.76

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Solution

The fourth proportional to 91,960.12, 126,908.72 and 51,673.76 is: 71,311.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,960.12 : 126,908.72 = 51,673.76 : x
  2. Step 2: Convert to fraction form
    91,960.12/126,908.72 = 51,673.76/x
  3. Step 3: Cross multiply
    91,960.12x = 126,908.72 × 51,673.76
  4. Step 4: Simplify right side
    91,960.12x = 6,557,850,739.19
  5. Step 5: Solve for x
    x = 6,557,850,739.19/91,960.12
  6. Step 6: Final answer
    x = 71,311.90

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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.