Home / 75,653.43-113,480.70-28,279.23

Finding the Fourth Proportional to 75,653.43, 113,480.70 and 28,279.23

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Solution

The fourth proportional to 75,653.43, 113,480.70 and 28,279.23 is: 42,419.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,653.43 : 113,480.70 = 28,279.23 : x
  2. Step 2: Convert to fraction form
    75,653.43/113,480.70 = 28,279.23/x
  3. Step 3: Cross multiply
    75,653.43x = 113,480.70 × 28,279.23
  4. Step 4: Simplify right side
    75,653.43x = 3,209,146,815.86
  5. Step 5: Solve for x
    x = 3,209,146,815.86/75,653.43
  6. Step 6: Final answer
    x = 42,419.05

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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.