Home / 56,508.47-84,759.91-20,976.70

Finding the Fourth Proportional to 56,508.47, 84,759.91 and 20,976.70

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Solution

The fourth proportional to 56,508.47, 84,759.91 and 20,976.70 is: 31,464.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,508.47 : 84,759.91 = 20,976.70 : x
  2. Step 2: Convert to fraction form
    56,508.47/84,759.91 = 20,976.70/x
  3. Step 3: Cross multiply
    56,508.47x = 84,759.91 × 20,976.70
  4. Step 4: Simplify right side
    56,508.47x = 1,777,983,204.10
  5. Step 5: Solve for x
    x = 1,777,983,204.10/56,508.47
  6. Step 6: Final answer
    x = 31,464.01

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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.