Home / 56,079.66-84,107.61-21,021.90

Finding the Fourth Proportional to 56,079.66, 84,107.61 and 21,021.90

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Solution

The fourth proportional to 56,079.66, 84,107.61 and 21,021.90 is: 31,528.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,079.66 : 84,107.61 = 21,021.90 : x
  2. Step 2: Convert to fraction form
    56,079.66/84,107.61 = 21,021.90/x
  3. Step 3: Cross multiply
    56,079.66x = 84,107.61 × 21,021.90
  4. Step 4: Simplify right side
    56,079.66x = 1,768,101,766.66
  5. Step 5: Solve for x
    x = 1,768,101,766.66/56,079.66
  6. Step 6: Final answer
    x = 31,528.40

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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.