Home / 56,107.76-84,117.12-28,013.36

Finding the Fourth Proportional to 56,107.76, 84,117.12 and 28,013.36

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Solution

The fourth proportional to 56,107.76, 84,117.12 and 28,013.36 is: 41,997.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,107.76 : 84,117.12 = 28,013.36 : x
  2. Step 2: Convert to fraction form
    56,107.76/84,117.12 = 28,013.36/x
  3. Step 3: Cross multiply
    56,107.76x = 84,117.12 × 28,013.36
  4. Step 4: Simplify right side
    56,107.76x = 2,356,403,164.72
  5. Step 5: Solve for x
    x = 2,356,403,164.72/56,107.76
  6. Step 6: Final answer
    x = 41,997.81

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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.