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Finding the Fourth Proportional to 77,081.92, 115,566.56 and 52,059.84

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Solution

The fourth proportional to 77,081.92, 115,566.56 and 52,059.84 is: 78,051.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,081.92 : 115,566.56 = 52,059.84 : x
  2. Step 2: Convert to fraction form
    77,081.92/115,566.56 = 52,059.84/x
  3. Step 3: Cross multiply
    77,081.92x = 115,566.56 × 52,059.84
  4. Step 4: Simplify right side
    77,081.92x = 6,016,376,622.95
  5. Step 5: Solve for x
    x = 6,016,376,622.95/77,081.92
  6. Step 6: Final answer
    x = 78,051.72

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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.