Home / 45,168.05-67,415.90-39,137.18

Finding the Fourth Proportional to 45,168.05, 67,415.90 and 39,137.18

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Solution

The fourth proportional to 45,168.05, 67,415.90 and 39,137.18 is: 58,414.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,168.05 : 67,415.90 = 39,137.18 : x
  2. Step 2: Convert to fraction form
    45,168.05/67,415.90 = 39,137.18/x
  3. Step 3: Cross multiply
    45,168.05x = 67,415.90 × 39,137.18
  4. Step 4: Simplify right side
    45,168.05x = 2,638,467,680.40
  5. Step 5: Solve for x
    x = 2,638,467,680.40/45,168.05
  6. Step 6: Final answer
    x = 58,414.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.