Home / 93,143.25-128,537.69-50,702.09

Finding the Fourth Proportional to 93,143.25, 128,537.69 and 50,702.09

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Solution

The fourth proportional to 93,143.25, 128,537.69 and 50,702.09 is: 69,968.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,143.25 : 128,537.69 = 50,702.09 : x
  2. Step 2: Convert to fraction form
    93,143.25/128,537.69 = 50,702.09/x
  3. Step 3: Cross multiply
    93,143.25x = 128,537.69 × 50,702.09
  4. Step 4: Simplify right side
    93,143.25x = 6,517,128,630.57
  5. Step 5: Solve for x
    x = 6,517,128,630.57/93,143.25
  6. Step 6: Final answer
    x = 69,968.88

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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.