Home / 76,323.87-105,379.07-47,687.13

Finding the Fourth Proportional to 76,323.87, 105,379.07 and 47,687.13

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Solution

The fourth proportional to 76,323.87, 105,379.07 and 47,687.13 is: 65,840.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,323.87 : 105,379.07 = 47,687.13 : x
  2. Step 2: Convert to fraction form
    76,323.87/105,379.07 = 47,687.13/x
  3. Step 3: Cross multiply
    76,323.87x = 105,379.07 × 47,687.13
  4. Step 4: Simplify right side
    76,323.87x = 5,025,225,410.37
  5. Step 5: Solve for x
    x = 5,025,225,410.37/76,323.87
  6. Step 6: Final answer
    x = 65,840.81

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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.