Home / 84,660.13-126,878.76-47,237.83

Finding the Fourth Proportional to 84,660.13, 126,878.76 and 47,237.83

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Solution

The fourth proportional to 84,660.13, 126,878.76 and 47,237.83 is: 70,794.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,660.13 : 126,878.76 = 47,237.83 : x
  2. Step 2: Convert to fraction form
    84,660.13/126,878.76 = 47,237.83/x
  3. Step 3: Cross multiply
    84,660.13x = 126,878.76 × 47,237.83
  4. Step 4: Simplify right side
    84,660.13x = 5,993,477,295.49
  5. Step 5: Solve for x
    x = 5,993,477,295.49/84,660.13
  6. Step 6: Final answer
    x = 70,794.57

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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.