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Finding the Fourth Proportional to 73,802.92, 110,701.50 and 21,212.20

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Solution

The fourth proportional to 73,802.92, 110,701.50 and 21,212.20 is: 31,817.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,802.92 : 110,701.50 = 21,212.20 : x
  2. Step 2: Convert to fraction form
    73,802.92/110,701.50 = 21,212.20/x
  3. Step 3: Cross multiply
    73,802.92x = 110,701.50 × 21,212.20
  4. Step 4: Simplify right side
    73,802.92x = 2,348,222,358.30
  5. Step 5: Solve for x
    x = 2,348,222,358.30/73,802.92
  6. Step 6: Final answer
    x = 31,817.47

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1.5x scale

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.