Home / 45,348.19-68,021.13-12,068.54

Finding the Fourth Proportional to 45,348.19, 68,021.13 and 12,068.54

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Solution

The fourth proportional to 45,348.19, 68,021.13 and 12,068.54 is: 18,102.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,348.19 : 68,021.13 = 12,068.54 : x
  2. Step 2: Convert to fraction form
    45,348.19/68,021.13 = 12,068.54/x
  3. Step 3: Cross multiply
    45,348.19x = 68,021.13 × 12,068.54
  4. Step 4: Simplify right side
    45,348.19x = 820,915,728.25
  5. Step 5: Solve for x
    x = 820,915,728.25/45,348.19
  6. Step 6: Final answer
    x = 18,102.50

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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.