Home / 87,647.76-120,924.36-49,895.28

Finding the Fourth Proportional to 87,647.76, 120,924.36 and 49,895.28

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Solution

The fourth proportional to 87,647.76, 120,924.36 and 49,895.28 is: 68,838.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,647.76 : 120,924.36 = 49,895.28 : x
  2. Step 2: Convert to fraction form
    87,647.76/120,924.36 = 49,895.28/x
  3. Step 3: Cross multiply
    87,647.76x = 120,924.36 × 49,895.28
  4. Step 4: Simplify right side
    87,647.76x = 6,033,554,801.02
  5. Step 5: Solve for x
    x = 6,033,554,801.02/87,647.76
  6. Step 6: Final answer
    x = 68,838.67

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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.