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Finding the Fourth Proportional to 83,739.51, 115,562.67 and 45,498.67

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Solution

The fourth proportional to 83,739.51, 115,562.67 and 45,498.67 is: 62,789.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,739.51 : 115,562.67 = 45,498.67 : x
  2. Step 2: Convert to fraction form
    83,739.51/115,562.67 = 45,498.67/x
  3. Step 3: Cross multiply
    83,739.51x = 115,562.67 × 45,498.67
  4. Step 4: Simplify right side
    83,739.51x = 5,257,947,786.65
  5. Step 5: Solve for x
    x = 5,257,947,786.65/83,739.51
  6. Step 6: Final answer
    x = 62,789.33

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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.