Home / 64,868.51-89,518.66-36,190.05

Finding the Fourth Proportional to 64,868.51, 89,518.66 and 36,190.05

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Solution

The fourth proportional to 64,868.51, 89,518.66 and 36,190.05 is: 49,942.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,868.51 : 89,518.66 = 36,190.05 : x
  2. Step 2: Convert to fraction form
    64,868.51/89,518.66 = 36,190.05/x
  3. Step 3: Cross multiply
    64,868.51x = 89,518.66 × 36,190.05
  4. Step 4: Simplify right side
    64,868.51x = 3,239,684,781.33
  5. Step 5: Solve for x
    x = 3,239,684,781.33/64,868.51
  6. Step 6: Final answer
    x = 49,942.33

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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.