Home / 73,985.40-110,986.20-71,652.60

Finding the Fourth Proportional to 73,985.40, 110,986.20 and 71,652.60

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Solution

The fourth proportional to 73,985.40, 110,986.20 and 71,652.60 is: 107,486.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,985.40 : 110,986.20 = 71,652.60 : x
  2. Step 2: Convert to fraction form
    73,985.40/110,986.20 = 71,652.60/x
  3. Step 3: Cross multiply
    73,985.40x = 110,986.20 × 71,652.60
  4. Step 4: Simplify right side
    73,985.40x = 7,952,449,794.12
  5. Step 5: Solve for x
    x = 7,952,449,794.12/73,985.40
  6. Step 6: Final answer
    x = 107,486.74

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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.