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Finding the Fourth Proportional to 70,212.39, 96,943.83 and 43,391.67

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Solution

The fourth proportional to 70,212.39, 96,943.83 and 43,391.67 is: 59,911.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,212.39 : 96,943.83 = 43,391.67 : x
  2. Step 2: Convert to fraction form
    70,212.39/96,943.83 = 43,391.67/x
  3. Step 3: Cross multiply
    70,212.39x = 96,943.83 × 43,391.67
  4. Step 4: Simplify right side
    70,212.39x = 4,206,554,679.90
  5. Step 5: Solve for x
    x = 4,206,554,679.90/70,212.39
  6. Step 6: Final answer
    x = 59,911.86

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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.