Home / 91,455.65-126,213.69-51,167.00

Finding the Fourth Proportional to 91,455.65, 126,213.69 and 51,167.00

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Solution

The fourth proportional to 91,455.65, 126,213.69 and 51,167.00 is: 70,613.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,455.65 : 126,213.69 = 51,167.00 : x
  2. Step 2: Convert to fraction form
    91,455.65/126,213.69 = 51,167.00/x
  3. Step 3: Cross multiply
    91,455.65x = 126,213.69 × 51,167.00
  4. Step 4: Simplify right side
    91,455.65x = 6,457,975,245.16
  5. Step 5: Solve for x
    x = 6,457,975,245.16/91,455.65
  6. Step 6: Final answer
    x = 70,613.19

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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.