Home / 79,309.08-109,449.68-43,500.40

Finding the Fourth Proportional to 79,309.08, 109,449.68 and 43,500.40

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Solution

The fourth proportional to 79,309.08, 109,449.68 and 43,500.40 is: 60,032.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,309.08 : 109,449.68 = 43,500.40 : x
  2. Step 2: Convert to fraction form
    79,309.08/109,449.68 = 43,500.40/x
  3. Step 3: Cross multiply
    79,309.08x = 109,449.68 × 43,500.40
  4. Step 4: Simplify right side
    79,309.08x = 4,761,104,859.87
  5. Step 5: Solve for x
    x = 4,761,104,859.87/79,309.08
  6. Step 6: Final answer
    x = 60,032.28

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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.