Home / 49,983.68-68,999.64-31,133.36

Finding the Fourth Proportional to 49,983.68, 68,999.64 and 31,133.36

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Solution

The fourth proportional to 49,983.68, 68,999.64 and 31,133.36 is: 42,977.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,983.68 : 68,999.64 = 31,133.36 : x
  2. Step 2: Convert to fraction form
    49,983.68/68,999.64 = 31,133.36/x
  3. Step 3: Cross multiply
    49,983.68x = 68,999.64 × 31,133.36
  4. Step 4: Simplify right side
    49,983.68x = 2,148,190,631.99
  5. Step 5: Solve for x
    x = 2,148,190,631.99/49,983.68
  6. Step 6: Final answer
    x = 42,977.84

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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.