Home / 75,486.12-113,203.26-28,752.36

Finding the Fourth Proportional to 75,486.12, 113,203.26 and 28,752.36

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Solution

The fourth proportional to 75,486.12, 113,203.26 and 28,752.36 is: 43,118.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,486.12 : 113,203.26 = 28,752.36 : x
  2. Step 2: Convert to fraction form
    75,486.12/113,203.26 = 28,752.36/x
  3. Step 3: Cross multiply
    75,486.12x = 113,203.26 × 28,752.36
  4. Step 4: Simplify right side
    75,486.12x = 3,254,860,884.69
  5. Step 5: Solve for x
    x = 3,254,860,884.69/75,486.12
  6. Step 6: Final answer
    x = 43,118.67

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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.