Home / 74,695.57-112,039.20-30,326.81

Finding the Fourth Proportional to 74,695.57, 112,039.20 and 30,326.81

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Solution

The fourth proportional to 74,695.57, 112,039.20 and 30,326.81 is: 45,488.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,695.57 : 112,039.20 = 30,326.81 : x
  2. Step 2: Convert to fraction form
    74,695.57/112,039.20 = 30,326.81/x
  3. Step 3: Cross multiply
    74,695.57x = 112,039.20 × 30,326.81
  4. Step 4: Simplify right side
    74,695.57x = 3,397,790,970.76
  5. Step 5: Solve for x
    x = 3,397,790,970.76/74,695.57
  6. Step 6: Final answer
    x = 45,488.52

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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.