Home / 61,021.26-91,495.68-18,888.84

Finding the Fourth Proportional to 61,021.26, 91,495.68 and 18,888.84

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Solution

The fourth proportional to 61,021.26, 91,495.68 and 18,888.84 is: 28,322.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,021.26 : 91,495.68 = 18,888.84 : x
  2. Step 2: Convert to fraction form
    61,021.26/91,495.68 = 18,888.84/x
  3. Step 3: Cross multiply
    61,021.26x = 91,495.68 × 18,888.84
  4. Step 4: Simplify right side
    61,021.26x = 1,728,247,260.21
  5. Step 5: Solve for x
    x = 1,728,247,260.21/61,021.26
  6. Step 6: Final answer
    x = 28,322.05

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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.