Home / 89,960.10-124,142.67-49,670.70

Finding the Fourth Proportional to 89,960.10, 124,142.67 and 49,670.70

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Solution

The fourth proportional to 89,960.10, 124,142.67 and 49,670.70 is: 68,544.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,960.10 : 124,142.67 = 49,670.70 : x
  2. Step 2: Convert to fraction form
    89,960.10/124,142.67 = 49,670.70/x
  3. Step 3: Cross multiply
    89,960.10x = 124,142.67 × 49,670.70
  4. Step 4: Simplify right side
    89,960.10x = 6,166,253,318.77
  5. Step 5: Solve for x
    x = 6,166,253,318.77/89,960.10
  6. Step 6: Final answer
    x = 68,544.31

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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.