Home / 75,499.12-113,002.25-55,503.32

Finding the Fourth Proportional to 75,499.12, 113,002.25 and 55,503.32

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Solution

The fourth proportional to 75,499.12, 113,002.25 and 55,503.32 is: 83,073.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,499.12 : 113,002.25 = 55,503.32 : x
  2. Step 2: Convert to fraction form
    75,499.12/113,002.25 = 55,503.32/x
  3. Step 3: Cross multiply
    75,499.12x = 113,002.25 × 55,503.32
  4. Step 4: Simplify right side
    75,499.12x = 6,271,999,512.15
  5. Step 5: Solve for x
    x = 6,271,999,512.15/75,499.12
  6. Step 6: Final answer
    x = 83,073.81

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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.