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Finding the Fourth Proportional to 78,803.44, 108,788.88 and 60,858.16

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Solution

The fourth proportional to 78,803.44, 108,788.88 and 60,858.16 is: 84,015.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,803.44 : 108,788.88 = 60,858.16 : x
  2. Step 2: Convert to fraction form
    78,803.44/108,788.88 = 60,858.16/x
  3. Step 3: Cross multiply
    78,803.44x = 108,788.88 × 60,858.16
  4. Step 4: Simplify right side
    78,803.44x = 6,620,691,065.26
  5. Step 5: Solve for x
    x = 6,620,691,065.26/78,803.44
  6. Step 6: Final answer
    x = 84,015.25

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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.