Home / 76,222.60-105,134.70-53,609.56

Finding the Fourth Proportional to 76,222.60, 105,134.70 and 53,609.56

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Solution

The fourth proportional to 76,222.60, 105,134.70 and 53,609.56 is: 73,944.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,222.60 : 105,134.70 = 53,609.56 : x
  2. Step 2: Convert to fraction form
    76,222.60/105,134.70 = 53,609.56/x
  3. Step 3: Cross multiply
    76,222.60x = 105,134.70 × 53,609.56
  4. Step 4: Simplify right side
    76,222.60x = 5,636,225,007.73
  5. Step 5: Solve for x
    x = 5,636,225,007.73/76,222.60
  6. Step 6: Final answer
    x = 73,944.28

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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.