Home / 75,968.80-113,953.28-19,808.86

Finding the Fourth Proportional to 75,968.80, 113,953.28 and 19,808.86

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Solution

The fourth proportional to 75,968.80, 113,953.28 and 19,808.86 is: 29,713.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,968.80 : 113,953.28 = 19,808.86 : x
  2. Step 2: Convert to fraction form
    75,968.80/113,953.28 = 19,808.86/x
  3. Step 3: Cross multiply
    75,968.80x = 113,953.28 × 19,808.86
  4. Step 4: Simplify right side
    75,968.80x = 2,257,284,334.70
  5. Step 5: Solve for x
    x = 2,257,284,334.70/75,968.80
  6. Step 6: Final answer
    x = 29,713.31

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1.5x scale

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.