Home / 55,193.07-76,164.32-31,318.32

Finding the Fourth Proportional to 55,193.07, 76,164.32 and 31,318.32

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Solution

The fourth proportional to 55,193.07, 76,164.32 and 31,318.32 is: 43,218.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,193.07 : 76,164.32 = 31,318.32 : x
  2. Step 2: Convert to fraction form
    55,193.07/76,164.32 = 31,318.32/x
  3. Step 3: Cross multiply
    55,193.07x = 76,164.32 × 31,318.32
  4. Step 4: Simplify right side
    55,193.07x = 2,385,338,546.34
  5. Step 5: Solve for x
    x = 2,385,338,546.34/55,193.07
  6. Step 6: Final answer
    x = 43,218.08

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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.