Home / 77,428.05-116,063.64-52,470.63

Finding the Fourth Proportional to 77,428.05, 116,063.64 and 52,470.63

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Solution

The fourth proportional to 77,428.05, 116,063.64 and 52,470.63 is: 78,652.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,428.05 : 116,063.64 = 52,470.63 : x
  2. Step 2: Convert to fraction form
    77,428.05/116,063.64 = 52,470.63/x
  3. Step 3: Cross multiply
    77,428.05x = 116,063.64 × 52,470.63
  4. Step 4: Simplify right side
    77,428.05x = 6,089,932,310.89
  5. Step 5: Solve for x
    x = 6,089,932,310.89/77,428.05
  6. Step 6: Final answer
    x = 78,652.79

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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.