Home / 55,609.92-83,421.36-18,172.80

Finding the Fourth Proportional to 55,609.92, 83,421.36 and 18,172.80

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Solution

The fourth proportional to 55,609.92, 83,421.36 and 18,172.80 is: 27,261.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,609.92 : 83,421.36 = 18,172.80 : x
  2. Step 2: Convert to fraction form
    55,609.92/83,421.36 = 18,172.80/x
  3. Step 3: Cross multiply
    55,609.92x = 83,421.36 × 18,172.80
  4. Step 4: Simplify right side
    55,609.92x = 1,515,999,691.01
  5. Step 5: Solve for x
    x = 1,515,999,691.01/55,609.92
  6. Step 6: Final answer
    x = 27,261.32

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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.