Home / 55,613.40-83,428.20-18,175.20

Finding the Fourth Proportional to 55,613.40, 83,428.20 and 18,175.20

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Solution

The fourth proportional to 55,613.40, 83,428.20 and 18,175.20 is: 27,265.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,613.40 : 83,428.20 = 18,175.20 : x
  2. Step 2: Convert to fraction form
    55,613.40/83,428.20 = 18,175.20/x
  3. Step 3: Cross multiply
    55,613.40x = 83,428.20 × 18,175.20
  4. Step 4: Simplify right side
    55,613.40x = 1,516,324,220.64
  5. Step 5: Solve for x
    x = 1,516,324,220.64/55,613.40
  6. Step 6: Final answer
    x = 27,265.45

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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.