Home / 75,132.10-103,679.08-41,139.97

Finding the Fourth Proportional to 75,132.10, 103,679.08 and 41,139.97

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Solution

The fourth proportional to 75,132.10, 103,679.08 and 41,139.97 is: 56,771.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,132.10 : 103,679.08 = 41,139.97 : x
  2. Step 2: Convert to fraction form
    75,132.10/103,679.08 = 41,139.97/x
  3. Step 3: Cross multiply
    75,132.10x = 103,679.08 × 41,139.97
  4. Step 4: Simplify right side
    75,132.10x = 4,265,354,240.83
  5. Step 5: Solve for x
    x = 4,265,354,240.83/75,132.10
  6. Step 6: Final answer
    x = 56,771.40

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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.