Home / 109,939.19-164,909.45-31,054.10

Finding the Fourth Proportional to 109,939.19, 164,909.45 and 31,054.10

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Solution

The fourth proportional to 109,939.19, 164,909.45 and 31,054.10 is: 46,581.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,939.19 : 164,909.45 = 31,054.10 : x
  2. Step 2: Convert to fraction form
    109,939.19/164,909.45 = 31,054.10/x
  3. Step 3: Cross multiply
    109,939.19x = 164,909.45 × 31,054.10
  4. Step 4: Simplify right side
    109,939.19x = 5,121,113,571.43
  5. Step 5: Solve for x
    x = 5,121,113,571.43/109,939.19
  6. Step 6: Final answer
    x = 46,581.33

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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.