Home / 53,919.46-80,880-18,860.23

Finding the Fourth Proportional to 53,919.46, 80,880 and 18,860.23

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Solution

The fourth proportional to 53,919.46, 80,880 and 18,860.23 is: 28,290.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,919.46 : 80,880 = 18,860.23 : x
  2. Step 2: Convert to fraction form
    53,919.46/80,880 = 18,860.23/x
  3. Step 3: Cross multiply
    53,919.46x = 80,880 × 18,860.23
  4. Step 4: Simplify right side
    53,919.46x = 1,525,415,402.40
  5. Step 5: Solve for x
    x = 1,525,415,402.40/53,919.46
  6. Step 6: Final answer
    x = 28,290.63

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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.