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Finding the Fourth Proportional to 85,009.59, 117,347.81 and 54,796.59

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Solution

The fourth proportional to 85,009.59, 117,347.81 and 54,796.59 is: 75,641.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,009.59 : 117,347.81 = 54,796.59 : x
  2. Step 2: Convert to fraction form
    85,009.59/117,347.81 = 54,796.59/x
  3. Step 3: Cross multiply
    85,009.59x = 117,347.81 × 54,796.59
  4. Step 4: Simplify right side
    85,009.59x = 6,430,259,557.98
  5. Step 5: Solve for x
    x = 6,430,259,557.98/85,009.59
  6. Step 6: Final answer
    x = 75,641.58

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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.