Home / 76,217.70-105,179.01-42,226.08

Finding the Fourth Proportional to 76,217.70, 105,179.01 and 42,226.08

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Solution

The fourth proportional to 76,217.70, 105,179.01 and 42,226.08 is: 58,271.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,217.70 : 105,179.01 = 42,226.08 : x
  2. Step 2: Convert to fraction form
    76,217.70/105,179.01 = 42,226.08/x
  3. Step 3: Cross multiply
    76,217.70x = 105,179.01 × 42,226.08
  4. Step 4: Simplify right side
    76,217.70x = 4,441,297,290.58
  5. Step 5: Solve for x
    x = 4,441,297,290.58/76,217.70
  6. Step 6: Final answer
    x = 58,271.21

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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.