Home / 76,621.68-105,732-44,787.60

Finding the Fourth Proportional to 76,621.68, 105,732 and 44,787.60

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Solution

The fourth proportional to 76,621.68, 105,732 and 44,787.60 is: 61,803.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,621.68 : 105,732 = 44,787.60 : x
  2. Step 2: Convert to fraction form
    76,621.68/105,732 = 44,787.60/x
  3. Step 3: Cross multiply
    76,621.68x = 105,732 × 44,787.60
  4. Step 4: Simplify right side
    76,621.68x = 4,735,482,523.20
  5. Step 5: Solve for x
    x = 4,735,482,523.20/76,621.68
  6. Step 6: Final answer
    x = 61,803.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.