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Finding the Fourth Proportional to 88,611.56, 122,214.84 and 56,783.42

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Solution

The fourth proportional to 88,611.56, 122,214.84 and 56,783.42 is: 78,316.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,611.56 : 122,214.84 = 56,783.42 : x
  2. Step 2: Convert to fraction form
    88,611.56/122,214.84 = 56,783.42/x
  3. Step 3: Cross multiply
    88,611.56x = 122,214.84 × 56,783.42
  4. Step 4: Simplify right side
    88,611.56x = 6,939,776,224.25
  5. Step 5: Solve for x
    x = 6,939,776,224.25/88,611.56
  6. Step 6: Final answer
    x = 78,316.83

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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.