Home / 87,828.72-121,203.66-47,542.35

Finding the Fourth Proportional to 87,828.72, 121,203.66 and 47,542.35

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Solution

The fourth proportional to 87,828.72, 121,203.66 and 47,542.35 is: 65,608.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,828.72 : 121,203.66 = 47,542.35 : x
  2. Step 2: Convert to fraction form
    87,828.72/121,203.66 = 47,542.35/x
  3. Step 3: Cross multiply
    87,828.72x = 121,203.66 × 47,542.35
  4. Step 4: Simplify right side
    87,828.72x = 5,762,306,825.00
  5. Step 5: Solve for x
    x = 5,762,306,825.00/87,828.72
  6. Step 6: Final answer
    x = 65,608.46

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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.