Home / 74,461.12-111,691.59-30,087.87

Finding the Fourth Proportional to 74,461.12, 111,691.59 and 30,087.87

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Solution

The fourth proportional to 74,461.12, 111,691.59 and 30,087.87 is: 45,131.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,461.12 : 111,691.59 = 30,087.87 : x
  2. Step 2: Convert to fraction form
    74,461.12/111,691.59 = 30,087.87/x
  3. Step 3: Cross multiply
    74,461.12x = 111,691.59 × 30,087.87
  4. Step 4: Simplify right side
    74,461.12x = 3,360,562,040.01
  5. Step 5: Solve for x
    x = 3,360,562,040.01/74,461.12
  6. Step 6: Final answer
    x = 45,131.77

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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.