Home / 45,007.75-67,465.54-18,727.75

Finding the Fourth Proportional to 45,007.75, 67,465.54 and 18,727.75

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Solution

The fourth proportional to 45,007.75, 67,465.54 and 18,727.75 is: 28,072.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,007.75 : 67,465.54 = 18,727.75 : x
  2. Step 2: Convert to fraction form
    45,007.75/67,465.54 = 18,727.75/x
  3. Step 3: Cross multiply
    45,007.75x = 67,465.54 × 18,727.75
  4. Step 4: Simplify right side
    45,007.75x = 1,263,477,766.74
  5. Step 5: Solve for x
    x = 1,263,477,766.74/45,007.75
  6. Step 6: Final answer
    x = 28,072.45

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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.