Home / 74,820.56-112,251.94-30,479.14

Finding the Fourth Proportional to 74,820.56, 112,251.94 and 30,479.14

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Solution

The fourth proportional to 74,820.56, 112,251.94 and 30,479.14 is: 45,727.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,820.56 : 112,251.94 = 30,479.14 : x
  2. Step 2: Convert to fraction form
    74,820.56/112,251.94 = 30,479.14/x
  3. Step 3: Cross multiply
    74,820.56x = 112,251.94 × 30,479.14
  4. Step 4: Simplify right side
    74,820.56x = 3,421,342,237.70
  5. Step 5: Solve for x
    x = 3,421,342,237.70/74,820.56
  6. Step 6: Final answer
    x = 45,727.30

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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.