Home / 81,577.17-112,576.44-47,609.01

Finding the Fourth Proportional to 81,577.17, 112,576.44 and 47,609.01

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Solution

The fourth proportional to 81,577.17, 112,576.44 and 47,609.01 is: 65,700.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,577.17 : 112,576.44 = 47,609.01 : x
  2. Step 2: Convert to fraction form
    81,577.17/112,576.44 = 47,609.01/x
  3. Step 3: Cross multiply
    81,577.17x = 112,576.44 × 47,609.01
  4. Step 4: Simplify right side
    81,577.17x = 5,359,652,857.72
  5. Step 5: Solve for x
    x = 5,359,652,857.72/81,577.17
  6. Step 6: Final answer
    x = 65,700.40

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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.