Home / 81,164.42-111,999.62-45,349.46

Finding the Fourth Proportional to 81,164.42, 111,999.62 and 45,349.46

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Solution

The fourth proportional to 81,164.42, 111,999.62 and 45,349.46 is: 62,578.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,164.42 : 111,999.62 = 45,349.46 : x
  2. Step 2: Convert to fraction form
    81,164.42/111,999.62 = 45,349.46/x
  3. Step 3: Cross multiply
    81,164.42x = 111,999.62 × 45,349.46
  4. Step 4: Simplify right side
    81,164.42x = 5,079,122,060.46
  5. Step 5: Solve for x
    x = 5,079,122,060.46/81,164.42
  6. Step 6: Final answer
    x = 62,578.18

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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.