Home / 78,674.04-117,879.66-34,234.20

Finding the Fourth Proportional to 78,674.04, 117,879.66 and 34,234.20

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Solution

The fourth proportional to 78,674.04, 117,879.66 and 34,234.20 is: 51,294.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,674.04 : 117,879.66 = 34,234.20 : x
  2. Step 2: Convert to fraction form
    78,674.04/117,879.66 = 34,234.20/x
  3. Step 3: Cross multiply
    78,674.04x = 117,879.66 × 34,234.20
  4. Step 4: Simplify right side
    78,674.04x = 4,035,515,856.37
  5. Step 5: Solve for x
    x = 4,035,515,856.37/78,674.04
  6. Step 6: Final answer
    x = 51,294.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.