Home / 75,410.58-113,130.45-28,659.81

Finding the Fourth Proportional to 75,410.58, 113,130.45 and 28,659.81

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Solution

The fourth proportional to 75,410.58, 113,130.45 and 28,659.81 is: 42,995.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,410.58 : 113,130.45 = 28,659.81 : x
  2. Step 2: Convert to fraction form
    75,410.58/113,130.45 = 28,659.81/x
  3. Step 3: Cross multiply
    75,410.58x = 113,130.45 × 28,659.81
  4. Step 4: Simplify right side
    75,410.58x = 3,242,297,202.21
  5. Step 5: Solve for x
    x = 3,242,297,202.21/75,410.58
  6. Step 6: Final answer
    x = 42,995.26

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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.