Home / 76,834.83-105,992.53-51,333.04

Finding the Fourth Proportional to 76,834.83, 105,992.53 and 51,333.04

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Solution

The fourth proportional to 76,834.83, 105,992.53 and 51,333.04 is: 70,813.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,834.83 : 105,992.53 = 51,333.04 : x
  2. Step 2: Convert to fraction form
    76,834.83/105,992.53 = 51,333.04/x
  3. Step 3: Cross multiply
    76,834.83x = 105,992.53 × 51,333.04
  4. Step 4: Simplify right side
    76,834.83x = 5,440,918,782.19
  5. Step 5: Solve for x
    x = 5,440,918,782.19/76,834.83
  6. Step 6: Final answer
    x = 70,813.18

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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.