Home / 55,461.40-83,175.90-19,918.60

Finding the Fourth Proportional to 55,461.40, 83,175.90 and 19,918.60

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Solution

The fourth proportional to 55,461.40, 83,175.90 and 19,918.60 is: 29,872.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,461.40 : 83,175.90 = 19,918.60 : x
  2. Step 2: Convert to fraction form
    55,461.40/83,175.90 = 19,918.60/x
  3. Step 3: Cross multiply
    55,461.40x = 83,175.90 × 19,918.60
  4. Step 4: Simplify right side
    55,461.40x = 1,656,747,481.74
  5. Step 5: Solve for x
    x = 1,656,747,481.74/55,461.40
  6. Step 6: Final answer
    x = 29,872.08

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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.