Home / 79,512.07-109,727.51-43,213.53

Finding the Fourth Proportional to 79,512.07, 109,727.51 and 43,213.53

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Solution

The fourth proportional to 79,512.07, 109,727.51 and 43,213.53 is: 59,635.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,512.07 : 109,727.51 = 43,213.53 : x
  2. Step 2: Convert to fraction form
    79,512.07/109,727.51 = 43,213.53/x
  3. Step 3: Cross multiply
    79,512.07x = 109,727.51 × 43,213.53
  4. Step 4: Simplify right side
    79,512.07x = 4,741,712,557.87
  5. Step 5: Solve for x
    x = 4,741,712,557.87/79,512.07
  6. Step 6: Final answer
    x = 59,635.13

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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.