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Finding the Fourth Proportional to 48,300, 66,631.32 and 34,160.64

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Solution

The fourth proportional to 48,300, 66,631.32 and 34,160.64 is: 47,125.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,300 : 66,631.32 = 34,160.64 : x
  2. Step 2: Convert to fraction form
    48,300/66,631.32 = 34,160.64/x
  3. Step 3: Cross multiply
    48,300x = 66,631.32 × 34,160.64
  4. Step 4: Simplify right side
    48,300x = 2,276,168,535.24
  5. Step 5: Solve for x
    x = 2,276,168,535.24/48,300
  6. Step 6: Final answer
    x = 47,125.64

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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.