Home / 91,455.72-126,213.80-51,167.08

Finding the Fourth Proportional to 91,455.72, 126,213.80 and 51,167.08

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Solution

The fourth proportional to 91,455.72, 126,213.80 and 51,167.08 is: 70,613.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,455.72 : 126,213.80 = 51,167.08 : x
  2. Step 2: Convert to fraction form
    91,455.72/126,213.80 = 51,167.08/x
  3. Step 3: Cross multiply
    91,455.72x = 126,213.80 × 51,167.08
  4. Step 4: Simplify right side
    91,455.72x = 6,457,991,601.70
  5. Step 5: Solve for x
    x = 6,457,991,601.70/91,455.72
  6. Step 6: Final answer
    x = 70,613.32

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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.