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Finding the Fourth Proportional to 85,994.64, 118,678.96 and 52,004.40

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Solution

The fourth proportional to 85,994.64, 118,678.96 and 52,004.40 is: 71,769.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,994.64 : 118,678.96 = 52,004.40 : x
  2. Step 2: Convert to fraction form
    85,994.64/118,678.96 = 52,004.40/x
  3. Step 3: Cross multiply
    85,994.64x = 118,678.96 × 52,004.40
  4. Step 4: Simplify right side
    85,994.64x = 6,171,828,107.42
  5. Step 5: Solve for x
    x = 6,171,828,107.42/85,994.64
  6. Step 6: Final answer
    x = 71,769.92

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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.