Home / 45,169.05-67,417.39-39,138.18

Finding the Fourth Proportional to 45,169.05, 67,417.39 and 39,138.18

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Solution

The fourth proportional to 45,169.05, 67,417.39 and 39,138.18 is: 58,415.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,169.05 : 67,417.39 = 39,138.18 : x
  2. Step 2: Convert to fraction form
    45,169.05/67,417.39 = 39,138.18/x
  3. Step 3: Cross multiply
    45,169.05x = 67,417.39 × 39,138.18
  4. Step 4: Simplify right side
    45,169.05x = 2,638,593,944.95
  5. Step 5: Solve for x
    x = 2,638,593,944.95/45,169.05
  6. Step 6: Final answer
    x = 58,415.97

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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.