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Finding the Fourth Proportional to 73,411.10, 110,116.65 and 20,822.30

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Solution

The fourth proportional to 73,411.10, 110,116.65 and 20,822.30 is: 31,233.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,411.10 : 110,116.65 = 20,822.30 : x
  2. Step 2: Convert to fraction form
    73,411.10/110,116.65 = 20,822.30/x
  3. Step 3: Cross multiply
    73,411.10x = 110,116.65 × 20,822.30
  4. Step 4: Simplify right side
    73,411.10x = 2,292,881,921.30
  5. Step 5: Solve for x
    x = 2,292,881,921.30/73,411.10
  6. Step 6: Final answer
    x = 31,233.45

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Similar ratio
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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.