Home / 57,129.42-85,698.14-17,681.34

Finding the Fourth Proportional to 57,129.42, 85,698.14 and 17,681.34

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Solution

The fourth proportional to 57,129.42, 85,698.14 and 17,681.34 is: 26,523.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,129.42 : 85,698.14 = 17,681.34 : x
  2. Step 2: Convert to fraction form
    57,129.42/85,698.14 = 17,681.34/x
  3. Step 3: Cross multiply
    57,129.42x = 85,698.14 × 17,681.34
  4. Step 4: Simplify right side
    57,129.42x = 1,515,257,862.30
  5. Step 5: Solve for x
    x = 1,515,257,862.30/57,129.42
  6. Step 6: Final answer
    x = 26,523.25

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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.