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Finding the Fourth Proportional to 75,481.63, 104,170.09 and 45,266.40

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Solution

The fourth proportional to 75,481.63, 104,170.09 and 45,266.40 is: 62,470.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,481.63 : 104,170.09 = 45,266.40 : x
  2. Step 2: Convert to fraction form
    75,481.63/104,170.09 = 45,266.40/x
  3. Step 3: Cross multiply
    75,481.63x = 104,170.09 × 45,266.40
  4. Step 4: Simplify right side
    75,481.63x = 4,715,404,848.81
  5. Step 5: Solve for x
    x = 4,715,404,848.81/75,481.63
  6. Step 6: Final answer
    x = 62,470.90

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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.