Home / 56,850.02-85,287.36-21,789.72

Finding the Fourth Proportional to 56,850.02, 85,287.36 and 21,789.72

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Solution

The fourth proportional to 56,850.02, 85,287.36 and 21,789.72 is: 32,689.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,850.02 : 85,287.36 = 21,789.72 : x
  2. Step 2: Convert to fraction form
    56,850.02/85,287.36 = 21,789.72/x
  3. Step 3: Cross multiply
    56,850.02x = 85,287.36 × 21,789.72
  4. Step 4: Simplify right side
    56,850.02x = 1,858,387,693.94
  5. Step 5: Solve for x
    x = 1,858,387,693.94/56,850.02
  6. Step 6: Final answer
    x = 32,689.31

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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.