Home / 56,107.26-84,139.02-21,027.78

Finding the Fourth Proportional to 56,107.26, 84,139.02 and 21,027.78

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Solution

The fourth proportional to 56,107.26, 84,139.02 and 21,027.78 is: 31,533.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,107.26 : 84,139.02 = 21,027.78 : x
  2. Step 2: Convert to fraction form
    56,107.26/84,139.02 = 21,027.78/x
  3. Step 3: Cross multiply
    56,107.26x = 84,139.02 × 21,027.78
  4. Step 4: Simplify right side
    56,107.26x = 1,769,256,801.98
  5. Step 5: Solve for x
    x = 1,769,256,801.98/56,107.26
  6. Step 6: Final answer
    x = 31,533.47

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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.