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Finding the Fourth Proportional to 70,010.56, 96,620.31 and 39,805.36

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Solution

The fourth proportional to 70,010.56, 96,620.31 and 39,805.36 is: 54,934.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,010.56 : 96,620.31 = 39,805.36 : x
  2. Step 2: Convert to fraction form
    70,010.56/96,620.31 = 39,805.36/x
  3. Step 3: Cross multiply
    70,010.56x = 96,620.31 × 39,805.36
  4. Step 4: Simplify right side
    70,010.56x = 3,846,005,981.31
  5. Step 5: Solve for x
    x = 3,846,005,981.31/70,010.56
  6. Step 6: Final answer
    x = 54,934.66

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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.