Home / 75,288.10-112,950.78-53,144.86

Finding the Fourth Proportional to 75,288.10, 112,950.78 and 53,144.86

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Solution

The fourth proportional to 75,288.10, 112,950.78 and 53,144.86 is: 79,730.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,288.10 : 112,950.78 = 53,144.86 : x
  2. Step 2: Convert to fraction form
    75,288.10/112,950.78 = 53,144.86/x
  3. Step 3: Cross multiply
    75,288.10x = 112,950.78 × 53,144.86
  4. Step 4: Simplify right side
    75,288.10x = 6,002,753,389.99
  5. Step 5: Solve for x
    x = 6,002,753,389.99/75,288.10
  6. Step 6: Final answer
    x = 79,730.44

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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.