Home / 45,446.19-68,172.70-12,165.52

Finding the Fourth Proportional to 45,446.19, 68,172.70 and 12,165.52

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Solution

The fourth proportional to 45,446.19, 68,172.70 and 12,165.52 is: 18,249.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,446.19 : 68,172.70 = 12,165.52 : x
  2. Step 2: Convert to fraction form
    45,446.19/68,172.70 = 12,165.52/x
  3. Step 3: Cross multiply
    45,446.19x = 68,172.70 × 12,165.52
  4. Step 4: Simplify right side
    45,446.19x = 829,356,120.46
  5. Step 5: Solve for x
    x = 829,356,120.46/45,446.19
  6. Step 6: Final answer
    x = 18,249.19

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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.