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Finding the Fourth Proportional to 85,994.11, 118,667.87 and 47,756.08

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Solution

The fourth proportional to 85,994.11, 118,667.87 and 47,756.08 is: 65,901.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,994.11 : 118,667.87 = 47,756.08 : x
  2. Step 2: Convert to fraction form
    85,994.11/118,667.87 = 47,756.08/x
  3. Step 3: Cross multiply
    85,994.11x = 118,667.87 × 47,756.08
  4. Step 4: Simplify right side
    85,994.11x = 5,667,112,293.15
  5. Step 5: Solve for x
    x = 5,667,112,293.15/85,994.11
  6. Step 6: Final answer
    x = 65,901.17

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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.