Home / 75,464.64-113,193.09-28,079.64

Finding the Fourth Proportional to 75,464.64, 113,193.09 and 28,079.64

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Solution

The fourth proportional to 75,464.64, 113,193.09 and 28,079.64 is: 42,118.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,464.64 : 113,193.09 = 28,079.64 : x
  2. Step 2: Convert to fraction form
    75,464.64/113,193.09 = 28,079.64/x
  3. Step 3: Cross multiply
    75,464.64x = 113,193.09 × 28,079.64
  4. Step 4: Simplify right side
    75,464.64x = 3,178,421,217.69
  5. Step 5: Solve for x
    x = 3,178,421,217.69/75,464.64
  6. Step 6: Final answer
    x = 42,118.02

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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.