Home / 75,621.60-113,451.09-31,261.05

Finding the Fourth Proportional to 75,621.60, 113,451.09 and 31,261.05

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Solution

The fourth proportional to 75,621.60, 113,451.09 and 31,261.05 is: 46,899.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,621.60 : 113,451.09 = 31,261.05 : x
  2. Step 2: Convert to fraction form
    75,621.60/113,451.09 = 31,261.05/x
  3. Step 3: Cross multiply
    75,621.60x = 113,451.09 × 31,261.05
  4. Step 4: Simplify right side
    75,621.60x = 3,546,600,197.04
  5. Step 5: Solve for x
    x = 3,546,600,197.04/75,621.60
  6. Step 6: Final answer
    x = 46,899.30

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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.