Home / 87,853.34-121,237.89-47,567.54

Finding the Fourth Proportional to 87,853.34, 121,237.89 and 47,567.54

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Solution

The fourth proportional to 87,853.34, 121,237.89 and 47,567.54 is: 65,643.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,853.34 : 121,237.89 = 47,567.54 : x
  2. Step 2: Convert to fraction form
    87,853.34/121,237.89 = 47,567.54/x
  3. Step 3: Cross multiply
    87,853.34x = 121,237.89 × 47,567.54
  4. Step 4: Simplify right side
    87,853.34x = 5,766,988,182.09
  5. Step 5: Solve for x
    x = 5,766,988,182.09/87,853.34
  6. Step 6: Final answer
    x = 65,643.36

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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.