Home / 84,022.48-115,949.96-45,783.66

Finding the Fourth Proportional to 84,022.48, 115,949.96 and 45,783.66

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Solution

The fourth proportional to 84,022.48, 115,949.96 and 45,783.66 is: 63,180.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,022.48 : 115,949.96 = 45,783.66 : x
  2. Step 2: Convert to fraction form
    84,022.48/115,949.96 = 45,783.66/x
  3. Step 3: Cross multiply
    84,022.48x = 115,949.96 × 45,783.66
  4. Step 4: Simplify right side
    84,022.48x = 5,308,613,545.65
  5. Step 5: Solve for x
    x = 5,308,613,545.65/84,022.48
  6. Step 6: Final answer
    x = 63,180.87

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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.