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Finding the Fourth Proportional to 77,071.68, 115,528.69 and 39,050.52

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Solution

The fourth proportional to 77,071.68, 115,528.69 and 39,050.52 is: 58,535.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,071.68 : 115,528.69 = 39,050.52 : x
  2. Step 2: Convert to fraction form
    77,071.68/115,528.69 = 39,050.52/x
  3. Step 3: Cross multiply
    77,071.68x = 115,528.69 × 39,050.52
  4. Step 4: Simplify right side
    77,071.68x = 4,511,455,035.00
  5. Step 5: Solve for x
    x = 4,511,455,035.00/77,071.68
  6. Step 6: Final answer
    x = 58,535.83

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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.