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Finding the Fourth Proportional to 45,181.80, 67,772.70 and 29,435.40

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Solution

The fourth proportional to 45,181.80, 67,772.70 and 29,435.40 is: 44,153.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,181.80 : 67,772.70 = 29,435.40 : x
  2. Step 2: Convert to fraction form
    45,181.80/67,772.70 = 29,435.40/x
  3. Step 3: Cross multiply
    45,181.80x = 67,772.70 × 29,435.40
  4. Step 4: Simplify right side
    45,181.80x = 1,994,916,533.58
  5. Step 5: Solve for x
    x = 1,994,916,533.58/45,181.80
  6. Step 6: Final answer
    x = 44,153.10

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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.