Home / 56,135.97-84,140.19-18,687.24

Finding the Fourth Proportional to 56,135.97, 84,140.19 and 18,687.24

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Solution

The fourth proportional to 56,135.97, 84,140.19 and 18,687.24 is: 28,009.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,135.97 : 84,140.19 = 18,687.24 : x
  2. Step 2: Convert to fraction form
    56,135.97/84,140.19 = 18,687.24/x
  3. Step 3: Cross multiply
    56,135.97x = 84,140.19 × 18,687.24
  4. Step 4: Simplify right side
    56,135.97x = 1,572,347,924.18
  5. Step 5: Solve for x
    x = 1,572,347,924.18/56,135.97
  6. Step 6: Final answer
    x = 28,009.63

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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.