Home / 87,950.90-121,305.83-55,254.82

Finding the Fourth Proportional to 87,950.90, 121,305.83 and 55,254.82

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Solution

The fourth proportional to 87,950.90, 121,305.83 and 55,254.82 is: 76,209.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,950.90 : 121,305.83 = 55,254.82 : x
  2. Step 2: Convert to fraction form
    87,950.90/121,305.83 = 55,254.82/x
  3. Step 3: Cross multiply
    87,950.90x = 121,305.83 × 55,254.82
  4. Step 4: Simplify right side
    87,950.90x = 6,702,731,801.60
  5. Step 5: Solve for x
    x = 6,702,731,801.60/87,950.90
  6. Step 6: Final answer
    x = 76,209.93

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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.