Home / 74,854.64-112,249.10-28,074.72

Finding the Fourth Proportional to 74,854.64, 112,249.10 and 28,074.72

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Solution

The fourth proportional to 74,854.64, 112,249.10 and 28,074.72 is: 42,099.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,854.64 : 112,249.10 = 28,074.72 : x
  2. Step 2: Convert to fraction form
    74,854.64/112,249.10 = 28,074.72/x
  3. Step 3: Cross multiply
    74,854.64x = 112,249.10 × 28,074.72
  4. Step 4: Simplify right side
    74,854.64x = 3,151,362,052.75
  5. Step 5: Solve for x
    x = 3,151,362,052.75/74,854.64
  6. Step 6: Final answer
    x = 42,099.76

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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.