Home / 79,065.18-109,111.48-47,234.07

Finding the Fourth Proportional to 79,065.18, 109,111.48 and 47,234.07

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Solution

The fourth proportional to 79,065.18, 109,111.48 and 47,234.07 is: 65,183.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,065.18 : 109,111.48 = 47,234.07 : x
  2. Step 2: Convert to fraction form
    79,065.18/109,111.48 = 47,234.07/x
  3. Step 3: Cross multiply
    79,065.18x = 109,111.48 × 47,234.07
  4. Step 4: Simplify right side
    79,065.18x = 5,153,779,759.20
  5. Step 5: Solve for x
    x = 5,153,779,759.20/79,065.18
  6. Step 6: Final answer
    x = 65,183.94

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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.