Home / 76,270.50-105,190.86-53,684.25

Finding the Fourth Proportional to 76,270.50, 105,190.86 and 53,684.25

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Solution

The fourth proportional to 76,270.50, 105,190.86 and 53,684.25 is: 74,040.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,270.50 : 105,190.86 = 53,684.25 : x
  2. Step 2: Convert to fraction form
    76,270.50/105,190.86 = 53,684.25/x
  3. Step 3: Cross multiply
    76,270.50x = 105,190.86 × 53,684.25
  4. Step 4: Simplify right side
    76,270.50x = 5,647,092,425.96
  5. Step 5: Solve for x
    x = 5,647,092,425.96/76,270.50
  6. Step 6: Final answer
    x = 74,040.32

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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.