Home / 56,139.66-84,191.97-18,690.96

Finding the Fourth Proportional to 56,139.66, 84,191.97 and 18,690.96

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Solution

The fourth proportional to 56,139.66, 84,191.97 and 18,690.96 is: 28,030.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,139.66 : 84,191.97 = 18,690.96 : x
  2. Step 2: Convert to fraction form
    56,139.66/84,191.97 = 18,690.96/x
  3. Step 3: Cross multiply
    56,139.66x = 84,191.97 × 18,690.96
  4. Step 4: Simplify right side
    56,139.66x = 1,573,628,743.59
  5. Step 5: Solve for x
    x = 1,573,628,743.59/56,139.66
  6. Step 6: Final answer
    x = 28,030.61

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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.