Home / 77,171.60-115,678.46-52,214.28

Finding the Fourth Proportional to 77,171.60, 115,678.46 and 52,214.28

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Solution

The fourth proportional to 77,171.60, 115,678.46 and 52,214.28 is: 78,268.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,171.60 : 115,678.46 = 52,214.28 : x
  2. Step 2: Convert to fraction form
    77,171.60/115,678.46 = 52,214.28/x
  3. Step 3: Cross multiply
    77,171.60x = 115,678.46 × 52,214.28
  4. Step 4: Simplify right side
    77,171.60x = 6,040,067,239.34
  5. Step 5: Solve for x
    x = 6,040,067,239.34/77,171.60
  6. Step 6: Final answer
    x = 78,268.01

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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.