Home / 91,911.36-126,828.72-51,616

Finding the Fourth Proportional to 91,911.36, 126,828.72 and 51,616

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Solution

The fourth proportional to 91,911.36, 126,828.72 and 51,616 is: 71,225.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,911.36 : 126,828.72 = 51,616 : x
  2. Step 2: Convert to fraction form
    91,911.36/126,828.72 = 51,616/x
  3. Step 3: Cross multiply
    91,911.36x = 126,828.72 × 51,616
  4. Step 4: Simplify right side
    91,911.36x = 6,546,391,211.52
  5. Step 5: Solve for x
    x = 6,546,391,211.52/91,911.36
  6. Step 6: Final answer
    x = 71,225.05

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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.