Home / 72,584.68-100,141.86-40,749.16

Finding the Fourth Proportional to 72,584.68, 100,141.86 and 40,749.16

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Solution

The fourth proportional to 72,584.68, 100,141.86 and 40,749.16 is: 56,219.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,584.68 : 100,141.86 = 40,749.16 : x
  2. Step 2: Convert to fraction form
    72,584.68/100,141.86 = 40,749.16/x
  3. Step 3: Cross multiply
    72,584.68x = 100,141.86 × 40,749.16
  4. Step 4: Simplify right side
    72,584.68x = 4,080,696,675.84
  5. Step 5: Solve for x
    x = 4,080,696,675.84/72,584.68
  6. Step 6: Final answer
    x = 56,219.81

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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.