Home / 75,970.74-113,956.19-19,810.80

Finding the Fourth Proportional to 75,970.74, 113,956.19 and 19,810.80

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Solution

The fourth proportional to 75,970.74, 113,956.19 and 19,810.80 is: 29,716.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,970.74 : 113,956.19 = 19,810.80 : x
  2. Step 2: Convert to fraction form
    75,970.74/113,956.19 = 19,810.80/x
  3. Step 3: Cross multiply
    75,970.74x = 113,956.19 × 19,810.80
  4. Step 4: Simplify right side
    75,970.74x = 2,257,562,620.02
  5. Step 5: Solve for x
    x = 2,257,562,620.02/75,970.74
  6. Step 6: Final answer
    x = 29,716.21

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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.