Home / 64,618.10-89,144.40-43,087.09

Finding the Fourth Proportional to 64,618.10, 89,144.40 and 43,087.09

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Solution

The fourth proportional to 64,618.10, 89,144.40 and 43,087.09 is: 59,441.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,618.10 : 89,144.40 = 43,087.09 : x
  2. Step 2: Convert to fraction form
    64,618.10/89,144.40 = 43,087.09/x
  3. Step 3: Cross multiply
    64,618.10x = 89,144.40 × 43,087.09
  4. Step 4: Simplify right side
    64,618.10x = 3,840,972,649.29
  5. Step 5: Solve for x
    x = 3,840,972,649.29/64,618.10
  6. Step 6: Final answer
    x = 59,441.12

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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.