Home / 77,904-107,524.32-49,603.20

Finding the Fourth Proportional to 77,904, 107,524.32 and 49,603.20

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Solution

The fourth proportional to 77,904, 107,524.32 and 49,603.20 is: 68,463.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,904 : 107,524.32 = 49,603.20 : x
  2. Step 2: Convert to fraction form
    77,904/107,524.32 = 49,603.20/x
  3. Step 3: Cross multiply
    77,904x = 107,524.32 × 49,603.20
  4. Step 4: Simplify right side
    77,904x = 5,333,550,349.82
  5. Step 5: Solve for x
    x = 5,333,550,349.82/77,904
  6. Step 6: Final answer
    x = 68,463.11

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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.