Home / 81,192.72-112,045.44-45,382.62

Finding the Fourth Proportional to 81,192.72, 112,045.44 and 45,382.62

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Solution

The fourth proportional to 81,192.72, 112,045.44 and 45,382.62 is: 62,627.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,192.72 : 112,045.44 = 45,382.62 : x
  2. Step 2: Convert to fraction form
    81,192.72/112,045.44 = 45,382.62/x
  3. Step 3: Cross multiply
    81,192.72x = 112,045.44 × 45,382.62
  4. Step 4: Simplify right side
    81,192.72x = 5,084,915,626.25
  5. Step 5: Solve for x
    x = 5,084,915,626.25/81,192.72
  6. Step 6: Final answer
    x = 62,627.73

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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.