Home / 91,429.13-126,181.70-52,668.29

Finding the Fourth Proportional to 91,429.13, 126,181.70 and 52,668.29

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Solution

The fourth proportional to 91,429.13, 126,181.70 and 52,668.29 is: 72,687.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,429.13 : 126,181.70 = 52,668.29 : x
  2. Step 2: Convert to fraction form
    91,429.13/126,181.70 = 52,668.29/x
  3. Step 3: Cross multiply
    91,429.13x = 126,181.70 × 52,668.29
  4. Step 4: Simplify right side
    91,429.13x = 6,645,773,474.04
  5. Step 5: Solve for x
    x = 6,645,773,474.04/91,429.13
  6. Step 6: Final answer
    x = 72,687.71

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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.