Home / 70,046.20-96,659.80-39,838.86

Finding the Fourth Proportional to 70,046.20, 96,659.80 and 39,838.86

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Solution

The fourth proportional to 70,046.20, 96,659.80 and 39,838.86 is: 54,975.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,046.20 : 96,659.80 = 39,838.86 : x
  2. Step 2: Convert to fraction form
    70,046.20/96,659.80 = 39,838.86/x
  3. Step 3: Cross multiply
    70,046.20x = 96,659.80 × 39,838.86
  4. Step 4: Simplify right side
    70,046.20x = 3,850,816,239.83
  5. Step 5: Solve for x
    x = 3,850,816,239.83/70,046.20
  6. Step 6: Final answer
    x = 54,975.38

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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.