Home / 72,943.32-109,426.64-30,823.80

Finding the Fourth Proportional to 72,943.32, 109,426.64 and 30,823.80

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Solution

The fourth proportional to 72,943.32, 109,426.64 and 30,823.80 is: 46,240.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,943.32 : 109,426.64 = 30,823.80 : x
  2. Step 2: Convert to fraction form
    72,943.32/109,426.64 = 30,823.80/x
  3. Step 3: Cross multiply
    72,943.32x = 109,426.64 × 30,823.80
  4. Step 4: Simplify right side
    72,943.32x = 3,372,944,866.03
  5. Step 5: Solve for x
    x = 3,372,944,866.03/72,943.32
  6. Step 6: Final answer
    x = 46,240.63

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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.