Home / 81,173.55-112,021.91-45,363.66

Finding the Fourth Proportional to 81,173.55, 112,021.91 and 45,363.66

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Solution

The fourth proportional to 81,173.55, 112,021.91 and 45,363.66 is: 62,603.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,173.55 : 112,021.91 = 45,363.66 : x
  2. Step 2: Convert to fraction form
    81,173.55/112,021.91 = 45,363.66/x
  3. Step 3: Cross multiply
    81,173.55x = 112,021.91 × 45,363.66
  4. Step 4: Simplify right side
    81,173.55x = 5,081,723,610.97
  5. Step 5: Solve for x
    x = 5,081,723,610.97/81,173.55
  6. Step 6: Final answer
    x = 62,603.20

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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.