Home / 89,621.20-123,676.40-49,333.93

Finding the Fourth Proportional to 89,621.20, 123,676.40 and 49,333.93

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Solution

The fourth proportional to 89,621.20, 123,676.40 and 49,333.93 is: 68,080.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,621.20 : 123,676.40 = 49,333.93 : x
  2. Step 2: Convert to fraction form
    89,621.20/123,676.40 = 49,333.93/x
  3. Step 3: Cross multiply
    89,621.20x = 123,676.40 × 49,333.93
  4. Step 4: Simplify right side
    89,621.20x = 6,101,442,674.40
  5. Step 5: Solve for x
    x = 6,101,442,674.40/89,621.20
  6. Step 6: Final answer
    x = 68,080.35

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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.