Home / 56,818.25-85,239.68-21,757.91

Finding the Fourth Proportional to 56,818.25, 85,239.68 and 21,757.91

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Solution

The fourth proportional to 56,818.25, 85,239.68 and 21,757.91 is: 32,641.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,818.25 : 85,239.68 = 21,757.91 : x
  2. Step 2: Convert to fraction form
    56,818.25/85,239.68 = 21,757.91/x
  3. Step 3: Cross multiply
    56,818.25x = 85,239.68 × 21,757.91
  4. Step 4: Simplify right side
    56,818.25x = 1,854,637,285.87
  5. Step 5: Solve for x
    x = 1,854,637,285.87/56,818.25
  6. Step 6: Final answer
    x = 32,641.58

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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.