Home / 89,126.50-122,994.57-53,318.02

Finding the Fourth Proportional to 89,126.50, 122,994.57 and 53,318.02

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Solution

The fourth proportional to 89,126.50, 122,994.57 and 53,318.02 is: 73,578.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,126.50 : 122,994.57 = 53,318.02 : x
  2. Step 2: Convert to fraction form
    89,126.50/122,994.57 = 53,318.02/x
  3. Step 3: Cross multiply
    89,126.50x = 122,994.57 × 53,318.02
  4. Step 4: Simplify right side
    89,126.50x = 6,557,826,943.15
  5. Step 5: Solve for x
    x = 6,557,826,943.15/89,126.50
  6. Step 6: Final answer
    x = 73,578.87

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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.