Home / 77,989.02-116,983.44-31,274.70

Finding the Fourth Proportional to 77,989.02, 116,983.44 and 31,274.70

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Solution

The fourth proportional to 77,989.02, 116,983.44 and 31,274.70 is: 46,912.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,989.02 : 116,983.44 = 31,274.70 : x
  2. Step 2: Convert to fraction form
    77,989.02/116,983.44 = 31,274.70/x
  3. Step 3: Cross multiply
    77,989.02x = 116,983.44 × 31,274.70
  4. Step 4: Simplify right side
    77,989.02x = 3,658,621,990.97
  5. Step 5: Solve for x
    x = 3,658,621,990.97/77,989.02
  6. Step 6: Final answer
    x = 46,912.01

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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.