Home / 57,005.76-78,667.55-31,855.26

Finding the Fourth Proportional to 57,005.76, 78,667.55 and 31,855.26

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Solution

The fourth proportional to 57,005.76, 78,667.55 and 31,855.26 is: 43,960.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,005.76 : 78,667.55 = 31,855.26 : x
  2. Step 2: Convert to fraction form
    57,005.76/78,667.55 = 31,855.26/x
  3. Step 3: Cross multiply
    57,005.76x = 78,667.55 × 31,855.26
  4. Step 4: Simplify right side
    57,005.76x = 2,505,975,099.54
  5. Step 5: Solve for x
    x = 2,505,975,099.54/57,005.76
  6. Step 6: Final answer
    x = 43,960.03

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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.