Home / 76,235.45-105,136.38-49,349.93

Finding the Fourth Proportional to 76,235.45, 105,136.38 and 49,349.93

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Solution

The fourth proportional to 76,235.45, 105,136.38 and 49,349.93 is: 68,058.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,235.45 : 105,136.38 = 49,349.93 : x
  2. Step 2: Convert to fraction form
    76,235.45/105,136.38 = 49,349.93/x
  3. Step 3: Cross multiply
    76,235.45x = 105,136.38 × 49,349.93
  4. Step 4: Simplify right side
    76,235.45x = 5,188,472,467.77
  5. Step 5: Solve for x
    x = 5,188,472,467.77/76,235.45
  6. Step 6: Final answer
    x = 68,058.53

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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.