Home / 74,580.18-111,836.79-21,971.22

Finding the Fourth Proportional to 74,580.18, 111,836.79 and 21,971.22

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Solution

The fourth proportional to 74,580.18, 111,836.79 and 21,971.22 is: 32,946.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,580.18 : 111,836.79 = 21,971.22 : x
  2. Step 2: Convert to fraction form
    74,580.18/111,836.79 = 21,971.22/x
  3. Step 3: Cross multiply
    74,580.18x = 111,836.79 × 21,971.22
  4. Step 4: Simplify right side
    74,580.18x = 2,457,190,717.18
  5. Step 5: Solve for x
    x = 2,457,190,717.18/74,580.18
  6. Step 6: Final answer
    x = 32,946.97

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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.