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Finding the Fourth Proportional to 71,009.39, 97,998.81 and 40,800.54

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Solution

The fourth proportional to 71,009.39, 97,998.81 and 40,800.54 is: 56,308.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,009.39 : 97,998.81 = 40,800.54 : x
  2. Step 2: Convert to fraction form
    71,009.39/97,998.81 = 40,800.54/x
  3. Step 3: Cross multiply
    71,009.39x = 97,998.81 × 40,800.54
  4. Step 4: Simplify right side
    71,009.39x = 3,998,404,367.36
  5. Step 5: Solve for x
    x = 3,998,404,367.36/71,009.39
  6. Step 6: Final answer
    x = 56,308.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.