Home / 51,159.66-76,738.95-19,994.64

Finding the Fourth Proportional to 51,159.66, 76,738.95 and 19,994.64

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Solution

The fourth proportional to 51,159.66, 76,738.95 and 19,994.64 is: 29,991.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,159.66 : 76,738.95 = 19,994.64 : x
  2. Step 2: Convert to fraction form
    51,159.66/76,738.95 = 19,994.64/x
  3. Step 3: Cross multiply
    51,159.66x = 76,738.95 × 19,994.64
  4. Step 4: Simplify right side
    51,159.66x = 1,534,367,679.23
  5. Step 5: Solve for x
    x = 1,534,367,679.23/51,159.66
  6. Step 6: Final answer
    x = 29,991.75

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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.