Home / 75,115.86-103,617.45-53,610.90

Finding the Fourth Proportional to 75,115.86, 103,617.45 and 53,610.90

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Solution

The fourth proportional to 75,115.86, 103,617.45 and 53,610.90 is: 73,952.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,115.86 : 103,617.45 = 53,610.90 : x
  2. Step 2: Convert to fraction form
    75,115.86/103,617.45 = 53,610.90/x
  3. Step 3: Cross multiply
    75,115.86x = 103,617.45 × 53,610.90
  4. Step 4: Simplify right side
    75,115.86x = 5,555,024,750.21
  5. Step 5: Solve for x
    x = 5,555,024,750.21/75,115.86
  6. Step 6: Final answer
    x = 73,952.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.