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Finding the Fourth Proportional to 55,754.81, 83,614.60 and 18,308.71

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Solution

The fourth proportional to 55,754.81, 83,614.60 and 18,308.71 is: 27,457.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,754.81 : 83,614.60 = 18,308.71 : x
  2. Step 2: Convert to fraction form
    55,754.81/83,614.60 = 18,308.71/x
  3. Step 3: Cross multiply
    55,754.81x = 83,614.60 × 18,308.71
  4. Step 4: Simplify right side
    55,754.81x = 1,530,875,371.62
  5. Step 5: Solve for x
    x = 1,530,875,371.62/55,754.81
  6. Step 6: Final answer
    x = 27,457.28

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1.5x scale

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.