Home / 75,478.23-113,043.75-43,809.86

Finding the Fourth Proportional to 75,478.23, 113,043.75 and 43,809.86

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Solution

The fourth proportional to 75,478.23, 113,043.75 and 43,809.86 is: 65,614.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,478.23 : 113,043.75 = 43,809.86 : x
  2. Step 2: Convert to fraction form
    75,478.23/113,043.75 = 43,809.86/x
  3. Step 3: Cross multiply
    75,478.23x = 113,043.75 × 43,809.86
  4. Step 4: Simplify right side
    75,478.23x = 4,952,431,226.13
  5. Step 5: Solve for x
    x = 4,952,431,226.13/75,478.23
  6. Step 6: Final answer
    x = 65,614.04

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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.