Home / 87,895.66-121,295.28-47,608.48

Finding the Fourth Proportional to 87,895.66, 121,295.28 and 47,608.48

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Solution

The fourth proportional to 87,895.66, 121,295.28 and 47,608.48 is: 65,699.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,895.66 : 121,295.28 = 47,608.48 : x
  2. Step 2: Convert to fraction form
    87,895.66/121,295.28 = 47,608.48/x
  3. Step 3: Cross multiply
    87,895.66x = 121,295.28 × 47,608.48
  4. Step 4: Simplify right side
    87,895.66x = 5,774,683,911.97
  5. Step 5: Solve for x
    x = 5,774,683,911.97/87,895.66
  6. Step 6: Final answer
    x = 65,699.31

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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.