Home / 89,977.20-124,175.89-51,749.13

Finding the Fourth Proportional to 89,977.20, 124,175.89 and 51,749.13

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Solution

The fourth proportional to 89,977.20, 124,175.89 and 51,749.13 is: 71,418.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,977.20 : 124,175.89 = 51,749.13 : x
  2. Step 2: Convert to fraction form
    89,977.20/124,175.89 = 51,749.13/x
  3. Step 3: Cross multiply
    89,977.20x = 124,175.89 × 51,749.13
  4. Step 4: Simplify right side
    89,977.20x = 6,425,993,815.24
  5. Step 5: Solve for x
    x = 6,425,993,815.24/89,977.20
  6. Step 6: Final answer
    x = 71,418.02

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1.5x scale

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.