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Finding the Fourth Proportional to 82,316.80, 123,475.20 and 23,154.40

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Solution

The fourth proportional to 82,316.80, 123,475.20 and 23,154.40 is: 34,731.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,316.80 : 123,475.20 = 23,154.40 : x
  2. Step 2: Convert to fraction form
    82,316.80/123,475.20 = 23,154.40/x
  3. Step 3: Cross multiply
    82,316.80x = 123,475.20 × 23,154.40
  4. Step 4: Simplify right side
    82,316.80x = 2,858,994,170.88
  5. Step 5: Solve for x
    x = 2,858,994,170.88/82,316.80
  6. Step 6: Final answer
    x = 34,731.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.