Home / 87,735.81-121,076.15-50,012.49

Finding the Fourth Proportional to 87,735.81, 121,076.15 and 50,012.49

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Solution

The fourth proportional to 87,735.81, 121,076.15 and 50,012.49 is: 69,017.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,735.81 : 121,076.15 = 50,012.49 : x
  2. Step 2: Convert to fraction form
    87,735.81/121,076.15 = 50,012.49/x
  3. Step 3: Cross multiply
    87,735.81x = 121,076.15 × 50,012.49
  4. Step 4: Simplify right side
    87,735.81x = 6,055,319,741.11
  5. Step 5: Solve for x
    x = 6,055,319,741.11/87,735.81
  6. Step 6: Final answer
    x = 69,017.65

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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.