Home / 56,721.68-85,094.88-21,671.36

Finding the Fourth Proportional to 56,721.68, 85,094.88 and 21,671.36

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Solution

The fourth proportional to 56,721.68, 85,094.88 and 21,671.36 is: 32,511.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,721.68 : 85,094.88 = 21,671.36 : x
  2. Step 2: Convert to fraction form
    56,721.68/85,094.88 = 21,671.36/x
  3. Step 3: Cross multiply
    56,721.68x = 85,094.88 × 21,671.36
  4. Step 4: Simplify right side
    56,721.68x = 1,844,121,778.64
  5. Step 5: Solve for x
    x = 1,844,121,778.64/56,721.68
  6. Step 6: Final answer
    x = 32,511.76

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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.