Home / 75,147.84-112,741.20-28,401.12

Finding the Fourth Proportional to 75,147.84, 112,741.20 and 28,401.12

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Solution

The fourth proportional to 75,147.84, 112,741.20 and 28,401.12 is: 42,609.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,147.84 : 112,741.20 = 28,401.12 : x
  2. Step 2: Convert to fraction form
    75,147.84/112,741.20 = 28,401.12/x
  3. Step 3: Cross multiply
    75,147.84x = 112,741.20 × 28,401.12
  4. Step 4: Simplify right side
    75,147.84x = 3,201,976,350.14
  5. Step 5: Solve for x
    x = 3,201,976,350.14/75,147.84
  6. Step 6: Final answer
    x = 42,609.03

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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.