Home / 76,786.68-105,962.94-42,794.04

Finding the Fourth Proportional to 76,786.68, 105,962.94 and 42,794.04

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Solution

The fourth proportional to 76,786.68, 105,962.94 and 42,794.04 is: 59,054.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,786.68 : 105,962.94 = 42,794.04 : x
  2. Step 2: Convert to fraction form
    76,786.68/105,962.94 = 42,794.04/x
  3. Step 3: Cross multiply
    76,786.68x = 105,962.94 × 42,794.04
  4. Step 4: Simplify right side
    76,786.68x = 4,534,582,292.88
  5. Step 5: Solve for x
    x = 4,534,582,292.88/76,786.68
  6. Step 6: Final answer
    x = 59,054.28

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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.