Home / 84,506.25-126,883.98-47,139.33

Finding the Fourth Proportional to 84,506.25, 126,883.98 and 47,139.33

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Solution

The fourth proportional to 84,506.25, 126,883.98 and 47,139.33 is: 70,778.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,506.25 : 126,883.98 = 47,139.33 : x
  2. Step 2: Convert to fraction form
    84,506.25/126,883.98 = 47,139.33/x
  3. Step 3: Cross multiply
    84,506.25x = 126,883.98 × 47,139.33
  4. Step 4: Simplify right side
    84,506.25x = 5,981,225,804.93
  5. Step 5: Solve for x
    x = 5,981,225,804.93/84,506.25
  6. Step 6: Final answer
    x = 70,778.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.