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Finding the Fourth Proportional to 70,400.31, 105,578.60 and 23,642.25

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Solution

The fourth proportional to 70,400.31, 105,578.60 and 23,642.25 is: 35,456.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,400.31 : 105,578.60 = 23,642.25 : x
  2. Step 2: Convert to fraction form
    70,400.31/105,578.60 = 23,642.25/x
  3. Step 3: Cross multiply
    70,400.31x = 105,578.60 × 23,642.25
  4. Step 4: Simplify right side
    70,400.31x = 2,496,115,537.64
  5. Step 5: Solve for x
    x = 2,496,115,537.64/70,400.31
  6. Step 6: Final answer
    x = 35,456.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.