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Finding the Fourth Proportional to 75,570.21, 104,285.21 and 43,738.47

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Solution

The fourth proportional to 75,570.21, 104,285.21 and 43,738.47 is: 60,358.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,570.21 : 104,285.21 = 43,738.47 : x
  2. Step 2: Convert to fraction form
    75,570.21/104,285.21 = 43,738.47/x
  3. Step 3: Cross multiply
    75,570.21x = 104,285.21 × 43,738.47
  4. Step 4: Simplify right side
    75,570.21x = 4,561,275,310.34
  5. Step 5: Solve for x
    x = 4,561,275,310.34/75,570.21
  6. Step 6: Final answer
    x = 60,358.11

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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.