Home / 77,621.94-116,478.09-32,640.05

Finding the Fourth Proportional to 77,621.94, 116,478.09 and 32,640.05

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Solution

The fourth proportional to 77,621.94, 116,478.09 and 32,640.05 is: 48,979.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,621.94 : 116,478.09 = 32,640.05 : x
  2. Step 2: Convert to fraction form
    77,621.94/116,478.09 = 32,640.05/x
  3. Step 3: Cross multiply
    77,621.94x = 116,478.09 × 32,640.05
  4. Step 4: Simplify right side
    77,621.94x = 3,801,850,681.50
  5. Step 5: Solve for x
    x = 3,801,850,681.50/77,621.94
  6. Step 6: Final answer
    x = 48,979.07

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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.