Home / 86,983.66-130,254.00-57,311.54

Finding the Fourth Proportional to 86,983.66, 130,254.00 and 57,311.54

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Solution

The fourth proportional to 86,983.66, 130,254.00 and 57,311.54 is: 85,821.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,983.66 : 130,254.00 = 57,311.54 : x
  2. Step 2: Convert to fraction form
    86,983.66/130,254.00 = 57,311.54/x
  3. Step 3: Cross multiply
    86,983.66x = 130,254.00 × 57,311.54
  4. Step 4: Simplify right side
    86,983.66x = 7,465,056,953.42
  5. Step 5: Solve for x
    x = 7,465,056,953.42/86,983.66
  6. Step 6: Final answer
    x = 85,821.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.