Home / 77,454.86-106,879.04-43,456.28

Finding the Fourth Proportional to 77,454.86, 106,879.04 and 43,456.28

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Solution

The fourth proportional to 77,454.86, 106,879.04 and 43,456.28 is: 59,964.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,454.86 : 106,879.04 = 43,456.28 : x
  2. Step 2: Convert to fraction form
    77,454.86/106,879.04 = 43,456.28/x
  3. Step 3: Cross multiply
    77,454.86x = 106,879.04 × 43,456.28
  4. Step 4: Simplify right side
    77,454.86x = 4,644,565,488.37
  5. Step 5: Solve for x
    x = 4,644,565,488.37/77,454.86
  6. Step 6: Final answer
    x = 59,964.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.