Home / 109,631.60-164,398.80-50,436.80

Finding the Fourth Proportional to 109,631.60, 164,398.80 and 50,436.80

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Solution

The fourth proportional to 109,631.60, 164,398.80 and 50,436.80 is: 75,632.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,631.60 : 164,398.80 = 50,436.80 : x
  2. Step 2: Convert to fraction form
    109,631.60/164,398.80 = 50,436.80/x
  3. Step 3: Cross multiply
    109,631.60x = 164,398.80 × 50,436.80
  4. Step 4: Simplify right side
    109,631.60x = 8,291,749,395.84
  5. Step 5: Solve for x
    x = 8,291,749,395.84/109,631.60
  6. Step 6: Final answer
    x = 75,632.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.