Home / 87,911.82-121,317.66-50,185.98

Finding the Fourth Proportional to 87,911.82, 121,317.66 and 50,185.98

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Solution

The fourth proportional to 87,911.82, 121,317.66 and 50,185.98 is: 69,256.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,911.82 : 121,317.66 = 50,185.98 : x
  2. Step 2: Convert to fraction form
    87,911.82/121,317.66 = 50,185.98/x
  3. Step 3: Cross multiply
    87,911.82x = 121,317.66 × 50,185.98
  4. Step 4: Simplify right side
    87,911.82x = 6,088,445,658.41
  5. Step 5: Solve for x
    x = 6,088,445,658.41/87,911.82
  6. Step 6: Final answer
    x = 69,256.28

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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.