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Finding the Fourth Proportional to 45,338.60, 68,007.80 and 12,058.67

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Solution

The fourth proportional to 45,338.60, 68,007.80 and 12,058.67 is: 18,087.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,338.60 : 68,007.80 = 12,058.67 : x
  2. Step 2: Convert to fraction form
    45,338.60/68,007.80 = 12,058.67/x
  3. Step 3: Cross multiply
    45,338.60x = 68,007.80 × 12,058.67
  4. Step 4: Simplify right side
    45,338.60x = 820,083,617.63
  5. Step 5: Solve for x
    x = 820,083,617.63/45,338.60
  6. Step 6: Final answer
    x = 18,087.98

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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.