Home / 40,578.28-60,870.48-12,112.99

Finding the Fourth Proportional to 40,578.28, 60,870.48 and 12,112.99

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Solution

The fourth proportional to 40,578.28, 60,870.48 and 12,112.99 is: 18,170.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,578.28 : 60,870.48 = 12,112.99 : x
  2. Step 2: Convert to fraction form
    40,578.28/60,870.48 = 12,112.99/x
  3. Step 3: Cross multiply
    40,578.28x = 60,870.48 × 12,112.99
  4. Step 4: Simplify right side
    40,578.28x = 737,323,363.07
  5. Step 5: Solve for x
    x = 737,323,363.07/40,578.28
  6. Step 6: Final answer
    x = 18,170.39

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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.