Home / 76,213.58-105,146.55-49,370.85

Finding the Fourth Proportional to 76,213.58, 105,146.55 and 49,370.85

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Solution

The fourth proportional to 76,213.58, 105,146.55 and 49,370.85 is: 68,113.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,213.58 : 105,146.55 = 49,370.85 : x
  2. Step 2: Convert to fraction form
    76,213.58/105,146.55 = 49,370.85/x
  3. Step 3: Cross multiply
    76,213.58x = 105,146.55 × 49,370.85
  4. Step 4: Simplify right side
    76,213.58x = 5,191,174,548.07
  5. Step 5: Solve for x
    x = 5,191,174,548.07/76,213.58
  6. Step 6: Final answer
    x = 68,113.52

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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.