Home / 55,631.51-83,419.47-18,172.15

Finding the Fourth Proportional to 55,631.51, 83,419.47 and 18,172.15

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Solution

The fourth proportional to 55,631.51, 83,419.47 and 18,172.15 is: 27,249.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,631.51 : 83,419.47 = 18,172.15 : x
  2. Step 2: Convert to fraction form
    55,631.51/83,419.47 = 18,172.15/x
  3. Step 3: Cross multiply
    55,631.51x = 83,419.47 × 18,172.15
  4. Step 4: Simplify right side
    55,631.51x = 1,515,910,913.21
  5. Step 5: Solve for x
    x = 1,515,910,913.21/55,631.51
  6. Step 6: Final answer
    x = 27,249.14

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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.