Home / 89,987.10-124,196-55,551.89

Finding the Fourth Proportional to 89,987.10, 124,196 and 55,551.89

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Solution

The fourth proportional to 89,987.10, 124,196 and 55,551.89 is: 76,670.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,987.10 : 124,196 = 55,551.89 : x
  2. Step 2: Convert to fraction form
    89,987.10/124,196 = 55,551.89/x
  3. Step 3: Cross multiply
    89,987.10x = 124,196 × 55,551.89
  4. Step 4: Simplify right side
    89,987.10x = 6,899,322,530.44
  5. Step 5: Solve for x
    x = 6,899,322,530.44/89,987.10
  6. Step 6: Final answer
    x = 76,670.13

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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.