Home / 40,101.21-55,334.80-23,111.02

Finding the Fourth Proportional to 40,101.21, 55,334.80 and 23,111.02

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Solution

The fourth proportional to 40,101.21, 55,334.80 and 23,111.02 is: 31,890.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,101.21 : 55,334.80 = 23,111.02 : x
  2. Step 2: Convert to fraction form
    40,101.21/55,334.80 = 23,111.02/x
  3. Step 3: Cross multiply
    40,101.21x = 55,334.80 × 23,111.02
  4. Step 4: Simplify right side
    40,101.21x = 1,278,843,669.50
  5. Step 5: Solve for x
    x = 1,278,843,669.50/40,101.21
  6. Step 6: Final answer
    x = 31,890.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.