Home / 53,936.40-80,904.60-51,661.20

Finding the Fourth Proportional to 53,936.40, 80,904.60 and 51,661.20

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Solution

The fourth proportional to 53,936.40, 80,904.60 and 51,661.20 is: 77,491.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,936.40 : 80,904.60 = 51,661.20 : x
  2. Step 2: Convert to fraction form
    53,936.40/80,904.60 = 51,661.20/x
  3. Step 3: Cross multiply
    53,936.40x = 80,904.60 × 51,661.20
  4. Step 4: Simplify right side
    53,936.40x = 4,179,628,721.52
  5. Step 5: Solve for x
    x = 4,179,628,721.52/53,936.40
  6. Step 6: Final answer
    x = 77,491.80

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1.5x scale

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.