Home / 83,261.30-114,760.64-63,111.74

Finding the Fourth Proportional to 83,261.30, 114,760.64 and 63,111.74

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Solution

The fourth proportional to 83,261.30, 114,760.64 and 63,111.74 is: 86,988.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,261.30 : 114,760.64 = 63,111.74 : x
  2. Step 2: Convert to fraction form
    83,261.30/114,760.64 = 63,111.74/x
  3. Step 3: Cross multiply
    83,261.30x = 114,760.64 × 63,111.74
  4. Step 4: Simplify right side
    83,261.30x = 7,242,743,257.89
  5. Step 5: Solve for x
    x = 7,242,743,257.89/83,261.30
  6. Step 6: Final answer
    x = 86,988.12

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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.