Home / 74,587.58-111,881.67-30,215.18

Finding the Fourth Proportional to 74,587.58, 111,881.67 and 30,215.18

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Solution

The fourth proportional to 74,587.58, 111,881.67 and 30,215.18 is: 45,322.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,587.58 : 111,881.67 = 30,215.18 : x
  2. Step 2: Convert to fraction form
    74,587.58/111,881.67 = 30,215.18/x
  3. Step 3: Cross multiply
    74,587.58x = 111,881.67 × 30,215.18
  4. Step 4: Simplify right side
    74,587.58x = 3,380,524,797.75
  5. Step 5: Solve for x
    x = 3,380,524,797.75/74,587.58
  6. Step 6: Final answer
    x = 45,322.89

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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.