Home / 91,388.48-126,102.72-51,097.28

Finding the Fourth Proportional to 91,388.48, 126,102.72 and 51,097.28

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Solution

The fourth proportional to 91,388.48, 126,102.72 and 51,097.28 is: 70,506.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,388.48 : 126,102.72 = 51,097.28 : x
  2. Step 2: Convert to fraction form
    91,388.48/126,102.72 = 51,097.28/x
  3. Step 3: Cross multiply
    91,388.48x = 126,102.72 × 51,097.28
  4. Step 4: Simplify right side
    91,388.48x = 6,443,505,992.60
  5. Step 5: Solve for x
    x = 6,443,505,992.60/91,388.48
  6. Step 6: Final answer
    x = 70,506.76

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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.