Home / 53,946.06-80,866.86-20,640.48

Finding the Fourth Proportional to 53,946.06, 80,866.86 and 20,640.48

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Solution

The fourth proportional to 53,946.06, 80,866.86 and 20,640.48 is: 30,940.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,946.06 : 80,866.86 = 20,640.48 : x
  2. Step 2: Convert to fraction form
    53,946.06/80,866.86 = 20,640.48/x
  3. Step 3: Cross multiply
    53,946.06x = 80,866.86 × 20,640.48
  4. Step 4: Simplify right side
    53,946.06x = 1,669,130,806.49
  5. Step 5: Solve for x
    x = 1,669,130,806.49/53,946.06
  6. Step 6: Final answer
    x = 30,940.74

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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.