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Finding the Fourth Proportional to 78,196.92, 107,926.20 and 44,662.92

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Solution

The fourth proportional to 78,196.92, 107,926.20 and 44,662.92 is: 61,643.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,196.92 : 107,926.20 = 44,662.92 : x
  2. Step 2: Convert to fraction form
    78,196.92/107,926.20 = 44,662.92/x
  3. Step 3: Cross multiply
    78,196.92x = 107,926.20 × 44,662.92
  4. Step 4: Simplify right side
    78,196.92x = 4,820,299,236.50
  5. Step 5: Solve for x
    x = 4,820,299,236.50/78,196.92
  6. Step 6: Final answer
    x = 61,643.08

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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.