Home / 53,931.37-80,922.14-20,640.46

Finding the Fourth Proportional to 53,931.37, 80,922.14 and 20,640.46

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Solution

The fourth proportional to 53,931.37, 80,922.14 and 20,640.46 is: 30,970.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,931.37 : 80,922.14 = 20,640.46 : x
  2. Step 2: Convert to fraction form
    53,931.37/80,922.14 = 20,640.46/x
  3. Step 3: Cross multiply
    53,931.37x = 80,922.14 × 20,640.46
  4. Step 4: Simplify right side
    53,931.37x = 1,670,270,090.58
  5. Step 5: Solve for x
    x = 1,670,270,090.58/53,931.37
  6. Step 6: Final answer
    x = 30,970.29

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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.