Home / 79,440.34-109,629.66-43,633.72

Finding the Fourth Proportional to 79,440.34, 109,629.66 and 43,633.72

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Solution

The fourth proportional to 79,440.34, 109,629.66 and 43,633.72 is: 60,215.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,440.34 : 109,629.66 = 43,633.72 : x
  2. Step 2: Convert to fraction form
    79,440.34/109,629.66 = 43,633.72/x
  3. Step 3: Cross multiply
    79,440.34x = 109,629.66 × 43,633.72
  4. Step 4: Simplify right side
    79,440.34x = 4,783,549,888.14
  5. Step 5: Solve for x
    x = 4,783,549,888.14/79,440.34
  6. Step 6: Final answer
    x = 60,215.63

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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.