Home / 75,902.10-113,885.55-36,438.90

Finding the Fourth Proportional to 75,902.10, 113,885.55 and 36,438.90

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Solution

The fourth proportional to 75,902.10, 113,885.55 and 36,438.90 is: 54,673.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,902.10 : 113,885.55 = 36,438.90 : x
  2. Step 2: Convert to fraction form
    75,902.10/113,885.55 = 36,438.90/x
  3. Step 3: Cross multiply
    75,902.10x = 113,885.55 × 36,438.90
  4. Step 4: Simplify right side
    75,902.10x = 4,149,864,167.90
  5. Step 5: Solve for x
    x = 4,149,864,167.90/75,902.10
  6. Step 6: Final answer
    x = 54,673.90

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1.5x scale

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.