Home / 70,212.36-96,869.39-39,976.29

Finding the Fourth Proportional to 70,212.36, 96,869.39 and 39,976.29

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Solution

The fourth proportional to 70,212.36, 96,869.39 and 39,976.29 is: 55,153.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,212.36 : 96,869.39 = 39,976.29 : x
  2. Step 2: Convert to fraction form
    70,212.36/96,869.39 = 39,976.29/x
  3. Step 3: Cross multiply
    70,212.36x = 96,869.39 × 39,976.29
  4. Step 4: Simplify right side
    70,212.36x = 3,872,478,684.53
  5. Step 5: Solve for x
    x = 3,872,478,684.53/70,212.36
  6. Step 6: Final answer
    x = 55,153.81

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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.