Home / 73,191.12-109,779.48-20,599.44

Finding the Fourth Proportional to 73,191.12, 109,779.48 and 20,599.44

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Solution

The fourth proportional to 73,191.12, 109,779.48 and 20,599.44 is: 30,897.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,191.12 : 109,779.48 = 20,599.44 : x
  2. Step 2: Convert to fraction form
    73,191.12/109,779.48 = 20,599.44/x
  3. Step 3: Cross multiply
    73,191.12x = 109,779.48 × 20,599.44
  4. Step 4: Simplify right side
    73,191.12x = 2,261,395,811.49
  5. Step 5: Solve for x
    x = 2,261,395,811.49/73,191.12
  6. Step 6: Final answer
    x = 30,897.13

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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.