Home / 77,669.68-116,485.32-33,291.40

Finding the Fourth Proportional to 77,669.68, 116,485.32 and 33,291.40

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Solution

The fourth proportional to 77,669.68, 116,485.32 and 33,291.40 is: 49,928.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,669.68 : 116,485.32 = 33,291.40 : x
  2. Step 2: Convert to fraction form
    77,669.68/116,485.32 = 33,291.40/x
  3. Step 3: Cross multiply
    77,669.68x = 116,485.32 × 33,291.40
  4. Step 4: Simplify right side
    77,669.68x = 3,877,959,382.25
  5. Step 5: Solve for x
    x = 3,877,959,382.25/77,669.68
  6. Step 6: Final answer
    x = 49,928.87

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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.