Home / 45,477.96-68,103-28,787.64

Finding the Fourth Proportional to 45,477.96, 68,103 and 28,787.64

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Solution

The fourth proportional to 45,477.96, 68,103 and 28,787.64 is: 43,109.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,477.96 : 68,103 = 28,787.64 : x
  2. Step 2: Convert to fraction form
    45,477.96/68,103 = 28,787.64/x
  3. Step 3: Cross multiply
    45,477.96x = 68,103 × 28,787.64
  4. Step 4: Simplify right side
    45,477.96x = 1,960,524,646.92
  5. Step 5: Solve for x
    x = 1,960,524,646.92/45,477.96
  6. Step 6: Final answer
    x = 43,109.34

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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.