Home / 76,920.10-115,294.05-50,317.34

Finding the Fourth Proportional to 76,920.10, 115,294.05 and 50,317.34

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Solution

The fourth proportional to 76,920.10, 115,294.05 and 50,317.34 is: 75,419.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,920.10 : 115,294.05 = 50,317.34 : x
  2. Step 2: Convert to fraction form
    76,920.10/115,294.05 = 50,317.34/x
  3. Step 3: Cross multiply
    76,920.10x = 115,294.05 × 50,317.34
  4. Step 4: Simplify right side
    76,920.10x = 5,801,289,337.36
  5. Step 5: Solve for x
    x = 5,801,289,337.36/76,920.10
  6. Step 6: Final answer
    x = 75,419.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.