Home / 57,128.92-85,697-17,682.72

Finding the Fourth Proportional to 57,128.92, 85,697 and 17,682.72

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Solution

The fourth proportional to 57,128.92, 85,697 and 17,682.72 is: 26,525.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,128.92 : 85,697 = 17,682.72 : x
  2. Step 2: Convert to fraction form
    57,128.92/85,697 = 17,682.72/x
  3. Step 3: Cross multiply
    57,128.92x = 85,697 × 17,682.72
  4. Step 4: Simplify right side
    57,128.92x = 1,515,356,055.84
  5. Step 5: Solve for x
    x = 1,515,356,055.84/57,128.92
  6. Step 6: Final answer
    x = 26,525.20

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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.