Home / 57,090.36-85,643.75-17,650.55

Finding the Fourth Proportional to 57,090.36, 85,643.75 and 17,650.55

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Solution

The fourth proportional to 57,090.36, 85,643.75 and 17,650.55 is: 26,478.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,090.36 : 85,643.75 = 17,650.55 : x
  2. Step 2: Convert to fraction form
    57,090.36/85,643.75 = 17,650.55/x
  3. Step 3: Cross multiply
    57,090.36x = 85,643.75 × 17,650.55
  4. Step 4: Simplify right side
    57,090.36x = 1,511,658,775.09
  5. Step 5: Solve for x
    x = 1,511,658,775.09/57,090.36
  6. Step 6: Final answer
    x = 26,478.35

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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.