Home / 93,143.32-128,537.76-50,702.16

Finding the Fourth Proportional to 93,143.32, 128,537.76 and 50,702.16

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Solution

The fourth proportional to 93,143.32, 128,537.76 and 50,702.16 is: 69,968.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,143.32 : 128,537.76 = 50,702.16 : x
  2. Step 2: Convert to fraction form
    93,143.32/128,537.76 = 50,702.16/x
  3. Step 3: Cross multiply
    93,143.32x = 128,537.76 × 50,702.16
  4. Step 4: Simplify right side
    93,143.32x = 6,517,142,073.56
  5. Step 5: Solve for x
    x = 6,517,142,073.56/93,143.32
  6. Step 6: Final answer
    x = 69,968.97

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1.5x scale

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.