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Finding the Fourth Proportional to 74,100.75, 102,259.04 and 40,566.75

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Solution

The fourth proportional to 74,100.75, 102,259.04 and 40,566.75 is: 55,982.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,100.75 : 102,259.04 = 40,566.75 : x
  2. Step 2: Convert to fraction form
    74,100.75/102,259.04 = 40,566.75/x
  3. Step 3: Cross multiply
    74,100.75x = 102,259.04 × 40,566.75
  4. Step 4: Simplify right side
    74,100.75x = 4,148,316,910.92
  5. Step 5: Solve for x
    x = 4,148,316,910.92/74,100.75
  6. Step 6: Final answer
    x = 55,982.12

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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.