Home / 91,418.55-126,164.19-51,145.28

Finding the Fourth Proportional to 91,418.55, 126,164.19 and 51,145.28

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Solution

The fourth proportional to 91,418.55, 126,164.19 and 51,145.28 is: 70,584.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,418.55 : 126,164.19 = 51,145.28 : x
  2. Step 2: Convert to fraction form
    91,418.55/126,164.19 = 51,145.28/x
  3. Step 3: Cross multiply
    91,418.55x = 126,164.19 × 51,145.28
  4. Step 4: Simplify right side
    91,418.55x = 6,452,702,823.52
  5. Step 5: Solve for x
    x = 6,452,702,823.52/91,418.55
  6. Step 6: Final answer
    x = 70,584.17

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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.