Home / 91,879.47-126,792.63-51,592.32

Finding the Fourth Proportional to 91,879.47, 126,792.63 and 51,592.32

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Solution

The fourth proportional to 91,879.47, 126,792.63 and 51,592.32 is: 71,196.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,879.47 : 126,792.63 = 51,592.32 : x
  2. Step 2: Convert to fraction form
    91,879.47/126,792.63 = 51,592.32/x
  3. Step 3: Cross multiply
    91,879.47x = 126,792.63 × 51,592.32
  4. Step 4: Simplify right side
    91,879.47x = 6,541,525,940.60
  5. Step 5: Solve for x
    x = 6,541,525,940.60/91,879.47
  6. Step 6: Final answer
    x = 71,196.82

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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.