Home / 79,021.56-109,041.54-47,186.12

Finding the Fourth Proportional to 79,021.56, 109,041.54 and 47,186.12

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Solution

The fourth proportional to 79,021.56, 109,041.54 and 47,186.12 is: 65,111.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,021.56 : 109,041.54 = 47,186.12 : x
  2. Step 2: Convert to fraction form
    79,021.56/109,041.54 = 47,186.12/x
  3. Step 3: Cross multiply
    79,021.56x = 109,041.54 × 47,186.12
  4. Step 4: Simplify right side
    79,021.56x = 5,145,247,191.42
  5. Step 5: Solve for x
    x = 5,145,247,191.42/79,021.56
  6. Step 6: Final answer
    x = 65,111.94

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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.