Home / 39,816.81-54,918.89-32,989.29

Finding the Fourth Proportional to 39,816.81, 54,918.89 and 32,989.29

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Solution

The fourth proportional to 39,816.81, 54,918.89 and 32,989.29 is: 45,501.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,816.81 : 54,918.89 = 32,989.29 : x
  2. Step 2: Convert to fraction form
    39,816.81/54,918.89 = 32,989.29/x
  3. Step 3: Cross multiply
    39,816.81x = 54,918.89 × 32,989.29
  4. Step 4: Simplify right side
    39,816.81x = 1,811,735,023.74
  5. Step 5: Solve for x
    x = 1,811,735,023.74/39,816.81
  6. Step 6: Final answer
    x = 45,501.76

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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.