Home / 74,784.20-112,197.56-30,442.77

Finding the Fourth Proportional to 74,784.20, 112,197.56 and 30,442.77

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Solution

The fourth proportional to 74,784.20, 112,197.56 and 30,442.77 is: 45,672.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,784.20 : 112,197.56 = 30,442.77 : x
  2. Step 2: Convert to fraction form
    74,784.20/112,197.56 = 30,442.77/x
  3. Step 3: Cross multiply
    74,784.20x = 112,197.56 × 30,442.77
  4. Step 4: Simplify right side
    74,784.20x = 3,415,604,361.43
  5. Step 5: Solve for x
    x = 3,415,604,361.43/74,784.20
  6. Step 6: Final answer
    x = 45,672.81

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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.