Home / 80,675.19-120,878.19-56,943.81

Finding the Fourth Proportional to 80,675.19, 120,878.19 and 56,943.81

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Solution

The fourth proportional to 80,675.19, 120,878.19 and 56,943.81 is: 85,320.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,675.19 : 120,878.19 = 56,943.81 : x
  2. Step 2: Convert to fraction form
    80,675.19/120,878.19 = 56,943.81/x
  3. Step 3: Cross multiply
    80,675.19x = 120,878.19 × 56,943.81
  4. Step 4: Simplify right side
    80,675.19x = 6,883,264,684.50
  5. Step 5: Solve for x
    x = 6,883,264,684.50/80,675.19
  6. Step 6: Final answer
    x = 85,320.71

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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.