Home / 76,825.20-105,981.09-51,337.83

Finding the Fourth Proportional to 76,825.20, 105,981.09 and 51,337.83

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Solution

The fourth proportional to 76,825.20, 105,981.09 and 51,337.83 is: 70,821.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,825.20 : 105,981.09 = 51,337.83 : x
  2. Step 2: Convert to fraction form
    76,825.20/105,981.09 = 51,337.83/x
  3. Step 3: Cross multiply
    76,825.20x = 105,981.09 × 51,337.83
  4. Step 4: Simplify right side
    76,825.20x = 5,440,839,181.63
  5. Step 5: Solve for x
    x = 5,440,839,181.63/76,825.20
  6. Step 6: Final answer
    x = 70,821.02

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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.