Home / 73,011.16-109,550.82-71,831.80

Finding the Fourth Proportional to 73,011.16, 109,550.82 and 71,831.80

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Solution

The fourth proportional to 73,011.16, 109,550.82 and 71,831.80 is: 107,781.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,011.16 : 109,550.82 = 71,831.80 : x
  2. Step 2: Convert to fraction form
    73,011.16/109,550.82 = 71,831.80/x
  3. Step 3: Cross multiply
    73,011.16x = 109,550.82 × 71,831.80
  4. Step 4: Simplify right side
    73,011.16x = 7,869,232,592.08
  5. Step 5: Solve for x
    x = 7,869,232,592.08/73,011.16
  6. Step 6: Final answer
    x = 107,781.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.