Home / 85,737.15-118,288.08-49,919.58

Finding the Fourth Proportional to 85,737.15, 118,288.08 and 49,919.58

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Solution

The fourth proportional to 85,737.15, 118,288.08 and 49,919.58 is: 68,872.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,737.15 : 118,288.08 = 49,919.58 : x
  2. Step 2: Convert to fraction form
    85,737.15/118,288.08 = 49,919.58/x
  3. Step 3: Cross multiply
    85,737.15x = 118,288.08 × 49,919.58
  4. Step 4: Simplify right side
    85,737.15x = 5,904,891,272.61
  5. Step 5: Solve for x
    x = 5,904,891,272.61/85,737.15
  6. Step 6: Final answer
    x = 68,872.03

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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.