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Finding the Fourth Proportional to 45,768.80, 68,623.60 and 19,466.40

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Solution

The fourth proportional to 45,768.80, 68,623.60 and 19,466.40 is: 29,187.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,768.80 : 68,623.60 = 19,466.40 : x
  2. Step 2: Convert to fraction form
    45,768.80/68,623.60 = 19,466.40/x
  3. Step 3: Cross multiply
    45,768.80x = 68,623.60 × 19,466.40
  4. Step 4: Simplify right side
    45,768.80x = 1,335,854,447.04
  5. Step 5: Solve for x
    x = 1,335,854,447.04/45,768.80
  6. Step 6: Final answer
    x = 29,187.01

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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.