Home / 75,132.11-103,682.48-40,677.21

Finding the Fourth Proportional to 75,132.11, 103,682.48 and 40,677.21

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Solution

The fourth proportional to 75,132.11, 103,682.48 and 40,677.21 is: 56,134.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,132.11 : 103,682.48 = 40,677.21 : x
  2. Step 2: Convert to fraction form
    75,132.11/103,682.48 = 40,677.21/x
  3. Step 3: Cross multiply
    75,132.11x = 103,682.48 × 40,677.21
  4. Step 4: Simplify right side
    75,132.11x = 4,217,514,012.28
  5. Step 5: Solve for x
    x = 4,217,514,012.28/75,132.11
  6. Step 6: Final answer
    x = 56,134.64

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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.