Home / 76,346.18-105,288.71-47,668.43

Finding the Fourth Proportional to 76,346.18, 105,288.71 and 47,668.43

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Solution

The fourth proportional to 76,346.18, 105,288.71 and 47,668.43 is: 65,739.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,346.18 : 105,288.71 = 47,668.43 : x
  2. Step 2: Convert to fraction form
    76,346.18/105,288.71 = 47,668.43/x
  3. Step 3: Cross multiply
    76,346.18x = 105,288.71 × 47,668.43
  4. Step 4: Simplify right side
    76,346.18x = 5,018,947,527.30
  5. Step 5: Solve for x
    x = 5,018,947,527.30/76,346.18
  6. Step 6: Final answer
    x = 65,739.34

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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.