Home / 70,196.90-96,864.86-39,979.85

Finding the Fourth Proportional to 70,196.90, 96,864.86 and 39,979.85

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Solution

The fourth proportional to 70,196.90, 96,864.86 and 39,979.85 is: 55,168.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,196.90 : 96,864.86 = 39,979.85 : x
  2. Step 2: Convert to fraction form
    70,196.90/96,864.86 = 39,979.85/x
  3. Step 3: Cross multiply
    70,196.90x = 96,864.86 × 39,979.85
  4. Step 4: Simplify right side
    70,196.90x = 3,872,642,188.70
  5. Step 5: Solve for x
    x = 3,872,642,188.70/70,196.90
  6. Step 6: Final answer
    x = 55,168.28

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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.