Home / 91,497.78-126,266.91-51,211.54

Finding the Fourth Proportional to 91,497.78, 126,266.91 and 51,211.54

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Solution

The fourth proportional to 91,497.78, 126,266.91 and 51,211.54 is: 70,671.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,497.78 : 126,266.91 = 51,211.54 : x
  2. Step 2: Convert to fraction form
    91,497.78/126,266.91 = 51,211.54/x
  3. Step 3: Cross multiply
    91,497.78x = 126,266.91 × 51,211.54
  4. Step 4: Simplify right side
    91,497.78x = 6,466,323,021.96
  5. Step 5: Solve for x
    x = 6,466,323,021.96/91,497.78
  6. Step 6: Final answer
    x = 70,671.91

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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.