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Finding the Fourth Proportional to 45,480.80, 68,043 and 29,928.80

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Solution

The fourth proportional to 45,480.80, 68,043 and 29,928.80 is: 44,775.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,480.80 : 68,043 = 29,928.80 : x
  2. Step 2: Convert to fraction form
    45,480.80/68,043 = 29,928.80/x
  3. Step 3: Cross multiply
    45,480.80x = 68,043 × 29,928.80
  4. Step 4: Simplify right side
    45,480.80x = 2,036,445,338.40
  5. Step 5: Solve for x
    x = 2,036,445,338.40/45,480.80
  6. Step 6: Final answer
    x = 44,775.93

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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.