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Finding the Fourth Proportional to 85,522, 118,021.12 and 47,280.96

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Solution

The fourth proportional to 85,522, 118,021.12 and 47,280.96 is: 65,248.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,522 : 118,021.12 = 47,280.96 : x
  2. Step 2: Convert to fraction form
    85,522/118,021.12 = 47,280.96/x
  3. Step 3: Cross multiply
    85,522x = 118,021.12 × 47,280.96
  4. Step 4: Simplify right side
    85,522x = 5,580,151,853.88
  5. Step 5: Solve for x
    x = 5,580,151,853.88/85,522
  6. Step 6: Final answer
    x = 65,248.14

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.