Home / 81,167.67-112,021.99-45,365.13

Finding the Fourth Proportional to 81,167.67, 112,021.99 and 45,365.13

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Solution

The fourth proportional to 81,167.67, 112,021.99 and 45,365.13 is: 62,609.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,167.67 : 112,021.99 = 45,365.13 : x
  2. Step 2: Convert to fraction form
    81,167.67/112,021.99 = 45,365.13/x
  3. Step 3: Cross multiply
    81,167.67x = 112,021.99 × 45,365.13
  4. Step 4: Simplify right side
    81,167.67x = 5,081,892,025.80
  5. Step 5: Solve for x
    x = 5,081,892,025.80/81,167.67
  6. Step 6: Final answer
    x = 62,609.81

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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.