Home / 56,298.45-84,459.71-20,759.86

Finding the Fourth Proportional to 56,298.45, 84,459.71 and 20,759.86

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Solution

The fourth proportional to 56,298.45, 84,459.71 and 20,759.86 is: 31,144.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,298.45 : 84,459.71 = 20,759.86 : x
  2. Step 2: Convert to fraction form
    56,298.45/84,459.71 = 20,759.86/x
  3. Step 3: Cross multiply
    56,298.45x = 84,459.71 × 20,759.86
  4. Step 4: Simplify right side
    56,298.45x = 1,753,371,755.24
  5. Step 5: Solve for x
    x = 1,753,371,755.24/56,298.45
  6. Step 6: Final answer
    x = 31,144.23

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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.