Home / 45,241.45-67,888.64-18,943.99

Finding the Fourth Proportional to 45,241.45, 67,888.64 and 18,943.99

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Solution

The fourth proportional to 45,241.45, 67,888.64 and 18,943.99 is: 28,427.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,241.45 : 67,888.64 = 18,943.99 : x
  2. Step 2: Convert to fraction form
    45,241.45/67,888.64 = 18,943.99/x
  3. Step 3: Cross multiply
    45,241.45x = 67,888.64 × 18,943.99
  4. Step 4: Simplify right side
    45,241.45x = 1,286,081,622.55
  5. Step 5: Solve for x
    x = 1,286,081,622.55/45,241.45
  6. Step 6: Final answer
    x = 28,427.06

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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.