Home / 55,696.50-76,861.35-30,203.28

Finding the Fourth Proportional to 55,696.50, 76,861.35 and 30,203.28

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Solution

The fourth proportional to 55,696.50, 76,861.35 and 30,203.28 is: 41,680.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,696.50 : 76,861.35 = 30,203.28 : x
  2. Step 2: Convert to fraction form
    55,696.50/76,861.35 = 30,203.28/x
  3. Step 3: Cross multiply
    55,696.50x = 76,861.35 × 30,203.28
  4. Step 4: Simplify right side
    55,696.50x = 2,321,464,875.23
  5. Step 5: Solve for x
    x = 2,321,464,875.23/55,696.50
  6. Step 6: Final answer
    x = 41,680.62

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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.