Home / 40,990.26-61,485.41-31,643.93

Finding the Fourth Proportional to 40,990.26, 61,485.41 and 31,643.93

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Solution

The fourth proportional to 40,990.26, 61,485.41 and 31,643.93 is: 47,465.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,990.26 : 61,485.41 = 31,643.93 : x
  2. Step 2: Convert to fraction form
    40,990.26/61,485.41 = 31,643.93/x
  3. Step 3: Cross multiply
    40,990.26x = 61,485.41 × 31,643.93
  4. Step 4: Simplify right side
    40,990.26x = 1,945,639,544.41
  5. Step 5: Solve for x
    x = 1,945,639,544.41/40,990.26
  6. Step 6: Final answer
    x = 47,465.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.