Home / 87,583.50-120,865.37-49,857.75

Finding the Fourth Proportional to 87,583.50, 120,865.37 and 49,857.75

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Solution

The fourth proportional to 87,583.50, 120,865.37 and 49,857.75 is: 68,803.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,583.50 : 120,865.37 = 49,857.75 : x
  2. Step 2: Convert to fraction form
    87,583.50/120,865.37 = 49,857.75/x
  3. Step 3: Cross multiply
    87,583.50x = 120,865.37 × 49,857.75
  4. Step 4: Simplify right side
    87,583.50x = 6,026,075,151.83
  5. Step 5: Solve for x
    x = 6,026,075,151.83/87,583.50
  6. Step 6: Final answer
    x = 68,803.77

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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.