Home / 51,349.64-77,018.62-13,907.56

Finding the Fourth Proportional to 51,349.64, 77,018.62 and 13,907.56

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Solution

The fourth proportional to 51,349.64, 77,018.62 and 13,907.56 is: 20,859.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,349.64 : 77,018.62 = 13,907.56 : x
  2. Step 2: Convert to fraction form
    51,349.64/77,018.62 = 13,907.56/x
  3. Step 3: Cross multiply
    51,349.64x = 77,018.62 × 13,907.56
  4. Step 4: Simplify right side
    51,349.64x = 1,071,141,078.77
  5. Step 5: Solve for x
    x = 1,071,141,078.77/51,349.64
  6. Step 6: Final answer
    x = 20,859.76

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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.