Home / 99,747.10-149,495.91-49,841.20

Finding the Fourth Proportional to 99,747.10, 149,495.91 and 49,841.20

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Solution

The fourth proportional to 99,747.10, 149,495.91 and 49,841.20 is: 74,699.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,747.10 : 149,495.91 = 49,841.20 : x
  2. Step 2: Convert to fraction form
    99,747.10/149,495.91 = 49,841.20/x
  3. Step 3: Cross multiply
    99,747.10x = 149,495.91 × 49,841.20
  4. Step 4: Simplify right side
    99,747.10x = 7,451,055,549.49
  5. Step 5: Solve for x
    x = 7,451,055,549.49/99,747.10
  6. Step 6: Final answer
    x = 74,699.47

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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.