Home / 77,470.60-116,244.18-45,879.39

Finding the Fourth Proportional to 77,470.60, 116,244.18 and 45,879.39

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Solution

The fourth proportional to 77,470.60, 116,244.18 and 45,879.39 is: 68,841.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,470.60 : 116,244.18 = 45,879.39 : x
  2. Step 2: Convert to fraction form
    77,470.60/116,244.18 = 45,879.39/x
  3. Step 3: Cross multiply
    77,470.60x = 116,244.18 × 45,879.39
  4. Step 4: Simplify right side
    77,470.60x = 5,333,212,069.45
  5. Step 5: Solve for x
    x = 5,333,212,069.45/77,470.60
  6. Step 6: Final answer
    x = 68,841.76

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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.