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Finding the Fourth Proportional to 88,783.20, 122,406.48 and 63,318.60

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Solution

The fourth proportional to 88,783.20, 122,406.48 and 63,318.60 is: 87,298.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,783.20 : 122,406.48 = 63,318.60 : x
  2. Step 2: Convert to fraction form
    88,783.20/122,406.48 = 63,318.60/x
  3. Step 3: Cross multiply
    88,783.20x = 122,406.48 × 63,318.60
  4. Step 4: Simplify right side
    88,783.20x = 7,750,606,944.53
  5. Step 5: Solve for x
    x = 7,750,606,944.53/88,783.20
  6. Step 6: Final answer
    x = 87,298.13

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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.