Home / 56,871.72-85,279.50-17,419.32

Finding the Fourth Proportional to 56,871.72, 85,279.50 and 17,419.32

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Solution

The fourth proportional to 56,871.72, 85,279.50 and 17,419.32 is: 26,120.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,871.72 : 85,279.50 = 17,419.32 : x
  2. Step 2: Convert to fraction form
    56,871.72/85,279.50 = 17,419.32/x
  3. Step 3: Cross multiply
    56,871.72x = 85,279.50 × 17,419.32
  4. Step 4: Simplify right side
    56,871.72x = 1,485,510,899.94
  5. Step 5: Solve for x
    x = 1,485,510,899.94/56,871.72
  6. Step 6: Final answer
    x = 26,120.38

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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.