Home / 79,127.35-109,197.03-43,316.76

Finding the Fourth Proportional to 79,127.35, 109,197.03 and 43,316.76

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Solution

The fourth proportional to 79,127.35, 109,197.03 and 43,316.76 is: 59,777.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,127.35 : 109,197.03 = 43,316.76 : x
  2. Step 2: Convert to fraction form
    79,127.35/109,197.03 = 43,316.76/x
  3. Step 3: Cross multiply
    79,127.35x = 109,197.03 × 43,316.76
  4. Step 4: Simplify right side
    79,127.35x = 4,730,061,541.22
  5. Step 5: Solve for x
    x = 4,730,061,541.22/79,127.35
  6. Step 6: Final answer
    x = 59,777.83

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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.