Home / 86,690.12-119,630.94-48,450.56

Finding the Fourth Proportional to 86,690.12, 119,630.94 and 48,450.56

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Solution

The fourth proportional to 86,690.12, 119,630.94 and 48,450.56 is: 66,860.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,690.12 : 119,630.94 = 48,450.56 : x
  2. Step 2: Convert to fraction form
    86,690.12/119,630.94 = 48,450.56/x
  3. Step 3: Cross multiply
    86,690.12x = 119,630.94 × 48,450.56
  4. Step 4: Simplify right side
    86,690.12x = 5,796,186,036.33
  5. Step 5: Solve for x
    x = 5,796,186,036.33/86,690.12
  6. Step 6: Final answer
    x = 66,860.98

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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.