Home / 76,154.14-105,092.70-42,620.14

Finding the Fourth Proportional to 76,154.14, 105,092.70 and 42,620.14

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Solution

The fourth proportional to 76,154.14, 105,092.70 and 42,620.14 is: 58,815.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,154.14 : 105,092.70 = 42,620.14 : x
  2. Step 2: Convert to fraction form
    76,154.14/105,092.70 = 42,620.14/x
  3. Step 3: Cross multiply
    76,154.14x = 105,092.70 × 42,620.14
  4. Step 4: Simplify right side
    76,154.14x = 4,479,065,586.98
  5. Step 5: Solve for x
    x = 4,479,065,586.98/76,154.14
  6. Step 6: Final answer
    x = 58,815.79

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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.