Home / 56,259.45-84,339.51-21,223.71

Finding the Fourth Proportional to 56,259.45, 84,339.51 and 21,223.71

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Solution

The fourth proportional to 56,259.45, 84,339.51 and 21,223.71 is: 31,816.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,259.45 : 84,339.51 = 21,223.71 : x
  2. Step 2: Convert to fraction form
    56,259.45/84,339.51 = 21,223.71/x
  3. Step 3: Cross multiply
    56,259.45x = 84,339.51 × 21,223.71
  4. Step 4: Simplify right side
    56,259.45x = 1,789,997,301.78
  5. Step 5: Solve for x
    x = 1,789,997,301.78/56,259.45
  6. Step 6: Final answer
    x = 31,816.83

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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.