Home / 74,419.00-111,635.16-21,111.49

Finding the Fourth Proportional to 74,419.00, 111,635.16 and 21,111.49

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Solution

The fourth proportional to 74,419.00, 111,635.16 and 21,111.49 is: 31,669.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,419.00 : 111,635.16 = 21,111.49 : x
  2. Step 2: Convert to fraction form
    74,419.00/111,635.16 = 21,111.49/x
  3. Step 3: Cross multiply
    74,419.00x = 111,635.16 × 21,111.49
  4. Step 4: Simplify right side
    74,419.00x = 2,356,784,115.17
  5. Step 5: Solve for x
    x = 2,356,784,115.17/74,419.00
  6. Step 6: Final answer
    x = 31,669.12

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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.