Home / 74,667.40-111,999.66-18,507.63

Finding the Fourth Proportional to 74,667.40, 111,999.66 and 18,507.63

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Solution

The fourth proportional to 74,667.40, 111,999.66 and 18,507.63 is: 27,761.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,667.40 : 111,999.66 = 18,507.63 : x
  2. Step 2: Convert to fraction form
    74,667.40/111,999.66 = 18,507.63/x
  3. Step 3: Cross multiply
    74,667.40x = 111,999.66 × 18,507.63
  4. Step 4: Simplify right side
    74,667.40x = 2,072,848,267.41
  5. Step 5: Solve for x
    x = 2,072,848,267.41/74,667.40
  6. Step 6: Final answer
    x = 27,761.09

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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.