Home / 84,846.20-127,269.30-43,287.80

Finding the Fourth Proportional to 84,846.20, 127,269.30 and 43,287.80

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Solution

The fourth proportional to 84,846.20, 127,269.30 and 43,287.80 is: 64,931.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,846.20 : 127,269.30 = 43,287.80 : x
  2. Step 2: Convert to fraction form
    84,846.20/127,269.30 = 43,287.80/x
  3. Step 3: Cross multiply
    84,846.20x = 127,269.30 × 43,287.80
  4. Step 4: Simplify right side
    84,846.20x = 5,509,208,004.54
  5. Step 5: Solve for x
    x = 5,509,208,004.54/84,846.20
  6. Step 6: Final answer
    x = 64,931.70

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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.