Home / 56,183.18-84,287.34-21,123.14

Finding the Fourth Proportional to 56,183.18, 84,287.34 and 21,123.14

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Solution

The fourth proportional to 56,183.18, 84,287.34 and 21,123.14 is: 31,689.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,183.18 : 84,287.34 = 21,123.14 : x
  2. Step 2: Convert to fraction form
    56,183.18/84,287.34 = 21,123.14/x
  3. Step 3: Cross multiply
    56,183.18x = 84,287.34 × 21,123.14
  4. Step 4: Simplify right side
    56,183.18x = 1,780,413,283.05
  5. Step 5: Solve for x
    x = 1,780,413,283.05/56,183.18
  6. Step 6: Final answer
    x = 31,689.44

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1.5x scale

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.