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Finding the Fourth Proportional to 86,138.88, 118,870.56 and 52,604.88

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Solution

The fourth proportional to 86,138.88, 118,870.56 and 52,604.88 is: 72,594.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,138.88 : 118,870.56 = 52,604.88 : x
  2. Step 2: Convert to fraction form
    86,138.88/118,870.56 = 52,604.88/x
  3. Step 3: Cross multiply
    86,138.88x = 118,870.56 × 52,604.88
  4. Step 4: Simplify right side
    86,138.88x = 6,253,171,544.33
  5. Step 5: Solve for x
    x = 6,253,171,544.33/86,138.88
  6. Step 6: Final answer
    x = 72,594.07

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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.