Home / 91,425.26-126,178.53-51,141.26

Finding the Fourth Proportional to 91,425.26, 126,178.53 and 51,141.26

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Solution

The fourth proportional to 91,425.26, 126,178.53 and 51,141.26 is: 70,581.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,425.26 : 126,178.53 = 51,141.26 : x
  2. Step 2: Convert to fraction form
    91,425.26/126,178.53 = 51,141.26/x
  3. Step 3: Cross multiply
    91,425.26x = 126,178.53 × 51,141.26
  4. Step 4: Simplify right side
    91,425.26x = 6,452,929,009.15
  5. Step 5: Solve for x
    x = 6,452,929,009.15/91,425.26
  6. Step 6: Final answer
    x = 70,581.47

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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.