Home / 81,266.16-112,216.52-51,101.96

Finding the Fourth Proportional to 81,266.16, 112,216.52 and 51,101.96

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Solution

The fourth proportional to 81,266.16, 112,216.52 and 51,101.96 is: 70,564.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,266.16 : 112,216.52 = 51,101.96 : x
  2. Step 2: Convert to fraction form
    81,266.16/112,216.52 = 51,101.96/x
  3. Step 3: Cross multiply
    81,266.16x = 112,216.52 × 51,101.96
  4. Step 4: Simplify right side
    81,266.16x = 5,734,484,116.38
  5. Step 5: Solve for x
    x = 5,734,484,116.38/81,266.16
  6. Step 6: Final answer
    x = 70,564.23

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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.