Home / 56,085.40-84,109.89-18,635.42

Finding the Fourth Proportional to 56,085.40, 84,109.89 and 18,635.42

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Solution

The fourth proportional to 56,085.40, 84,109.89 and 18,635.42 is: 27,947.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,085.40 : 84,109.89 = 18,635.42 : x
  2. Step 2: Convert to fraction form
    56,085.40/84,109.89 = 18,635.42/x
  3. Step 3: Cross multiply
    56,085.40x = 84,109.89 × 18,635.42
  4. Step 4: Simplify right side
    56,085.40x = 1,567,422,705.75
  5. Step 5: Solve for x
    x = 1,567,422,705.75/56,085.40
  6. Step 6: Final answer
    x = 27,947.07

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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.