Home / 83,108.19-114,649.27-54,415.20

Finding the Fourth Proportional to 83,108.19, 114,649.27 and 54,415.20

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Solution

The fourth proportional to 83,108.19, 114,649.27 and 54,415.20 is: 75,066.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,108.19 : 114,649.27 = 54,415.20 : x
  2. Step 2: Convert to fraction form
    83,108.19/114,649.27 = 54,415.20/x
  3. Step 3: Cross multiply
    83,108.19x = 114,649.27 × 54,415.20
  4. Step 4: Simplify right side
    83,108.19x = 6,238,662,956.90
  5. Step 5: Solve for x
    x = 6,238,662,956.90/83,108.19
  6. Step 6: Final answer
    x = 75,066.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.