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Finding the Fourth Proportional to 93,102.49, 128,459.04 and 54,863.60

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Solution

The fourth proportional to 93,102.49, 128,459.04 and 54,863.60 is: 75,698.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,102.49 : 128,459.04 = 54,863.60 : x
  2. Step 2: Convert to fraction form
    93,102.49/128,459.04 = 54,863.60/x
  3. Step 3: Cross multiply
    93,102.49x = 128,459.04 × 54,863.60
  4. Step 4: Simplify right side
    93,102.49x = 7,047,725,386.94
  5. Step 5: Solve for x
    x = 7,047,725,386.94/93,102.49
  6. Step 6: Final answer
    x = 75,698.57

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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.