Home / 56,086.74-84,139.02-21,029.04

Finding the Fourth Proportional to 56,086.74, 84,139.02 and 21,029.04

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Solution

The fourth proportional to 56,086.74, 84,139.02 and 21,029.04 is: 31,546.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,086.74 : 84,139.02 = 21,029.04 : x
  2. Step 2: Convert to fraction form
    56,086.74/84,139.02 = 21,029.04/x
  3. Step 3: Cross multiply
    56,086.74x = 84,139.02 × 21,029.04
  4. Step 4: Simplify right side
    56,086.74x = 1,769,362,817.14
  5. Step 5: Solve for x
    x = 1,769,362,817.14/56,086.74
  6. Step 6: Final answer
    x = 31,546.90

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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.