Home / 74,910.12-112,333.92-30,506.64

Finding the Fourth Proportional to 74,910.12, 112,333.92 and 30,506.64

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Solution

The fourth proportional to 74,910.12, 112,333.92 and 30,506.64 is: 45,747.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,910.12 : 112,333.92 = 30,506.64 : x
  2. Step 2: Convert to fraction form
    74,910.12/112,333.92 = 30,506.64/x
  3. Step 3: Cross multiply
    74,910.12x = 112,333.92 × 30,506.64
  4. Step 4: Simplify right side
    74,910.12x = 3,426,930,457.23
  5. Step 5: Solve for x
    x = 3,426,930,457.23/74,910.12
  6. Step 6: Final answer
    x = 45,747.23

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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.