Home / 70,520.10-105,787.44-48,540.75

Finding the Fourth Proportional to 70,520.10, 105,787.44 and 48,540.75

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Solution

The fourth proportional to 70,520.10, 105,787.44 and 48,540.75 is: 72,816.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,520.10 : 105,787.44 = 48,540.75 : x
  2. Step 2: Convert to fraction form
    70,520.10/105,787.44 = 48,540.75/x
  3. Step 3: Cross multiply
    70,520.10x = 105,787.44 × 48,540.75
  4. Step 4: Simplify right side
    70,520.10x = 5,135,001,678.18
  5. Step 5: Solve for x
    x = 5,135,001,678.18/70,520.10
  6. Step 6: Final answer
    x = 72,816.14

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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.