Home / 72,585.75-100,177.20-45,727.81

Finding the Fourth Proportional to 72,585.75, 100,177.20 and 45,727.81

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Solution

The fourth proportional to 72,585.75, 100,177.20 and 45,727.81 is: 63,109.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,585.75 : 100,177.20 = 45,727.81 : x
  2. Step 2: Convert to fraction form
    72,585.75/100,177.20 = 45,727.81/x
  3. Step 3: Cross multiply
    72,585.75x = 100,177.20 × 45,727.81
  4. Step 4: Simplify right side
    72,585.75x = 4,580,883,717.49
  5. Step 5: Solve for x
    x = 4,580,883,717.49/72,585.75
  6. Step 6: Final answer
    x = 63,109.96

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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.