Home / 57,055.69-78,736.39-31,905.19

Finding the Fourth Proportional to 57,055.69, 78,736.39 and 31,905.19

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Solution

The fourth proportional to 57,055.69, 78,736.39 and 31,905.19 is: 44,028.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,055.69 : 78,736.39 = 31,905.19 : x
  2. Step 2: Convert to fraction form
    57,055.69/78,736.39 = 31,905.19/x
  3. Step 3: Cross multiply
    57,055.69x = 78,736.39 × 31,905.19
  4. Step 4: Simplify right side
    57,055.69x = 2,512,099,482.86
  5. Step 5: Solve for x
    x = 2,512,099,482.86/57,055.69
  6. Step 6: Final answer
    x = 44,028.90

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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.