Home / 95,038.20-131,139.74-56,789.66

Finding the Fourth Proportional to 95,038.20, 131,139.74 and 56,789.66

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Solution

The fourth proportional to 95,038.20, 131,139.74 and 56,789.66 is: 78,361.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,038.20 : 131,139.74 = 56,789.66 : x
  2. Step 2: Convert to fraction form
    95,038.20/131,139.74 = 56,789.66/x
  3. Step 3: Cross multiply
    95,038.20x = 131,139.74 × 56,789.66
  4. Step 4: Simplify right side
    95,038.20x = 7,447,381,716.91
  5. Step 5: Solve for x
    x = 7,447,381,716.91/95,038.20
  6. Step 6: Final answer
    x = 78,361.98

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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.