Home / 70,000.16-96,596.56-39,781.44

Finding the Fourth Proportional to 70,000.16, 96,596.56 and 39,781.44

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Solution

The fourth proportional to 70,000.16, 96,596.56 and 39,781.44 is: 54,896.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,000.16 : 96,596.56 = 39,781.44 : x
  2. Step 2: Convert to fraction form
    70,000.16/96,596.56 = 39,781.44/x
  3. Step 3: Cross multiply
    70,000.16x = 96,596.56 × 39,781.44
  4. Step 4: Simplify right side
    70,000.16x = 3,842,750,255.85
  5. Step 5: Solve for x
    x = 3,842,750,255.85/70,000.16
  6. Step 6: Final answer
    x = 54,896.31

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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.