Home / 77,240.08-115,755.32-32,811.12

Finding the Fourth Proportional to 77,240.08, 115,755.32 and 32,811.12

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Solution

The fourth proportional to 77,240.08, 115,755.32 and 32,811.12 is: 49,172.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,240.08 : 115,755.32 = 32,811.12 : x
  2. Step 2: Convert to fraction form
    77,240.08/115,755.32 = 32,811.12/x
  3. Step 3: Cross multiply
    77,240.08x = 115,755.32 × 32,811.12
  4. Step 4: Simplify right side
    77,240.08x = 3,798,061,695.16
  5. Step 5: Solve for x
    x = 3,798,061,695.16/77,240.08
  6. Step 6: Final answer
    x = 49,172.16

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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.