Home / 79,000.06-109,021.80-47,163.01

Finding the Fourth Proportional to 79,000.06, 109,021.80 and 47,163.01

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Solution

The fourth proportional to 79,000.06, 109,021.80 and 47,163.01 is: 65,085.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,000.06 : 109,021.80 = 47,163.01 : x
  2. Step 2: Convert to fraction form
    79,000.06/109,021.80 = 47,163.01/x
  3. Step 3: Cross multiply
    79,000.06x = 109,021.80 × 47,163.01
  4. Step 4: Simplify right side
    79,000.06x = 5,141,796,243.62
  5. Step 5: Solve for x
    x = 5,141,796,243.62/79,000.06
  6. Step 6: Final answer
    x = 65,085.98

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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.