Home / 87,125.64-120,270.09-58,869.60

Finding the Fourth Proportional to 87,125.64, 120,270.09 and 58,869.60

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Solution

The fourth proportional to 87,125.64, 120,270.09 and 58,869.60 is: 81,264.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,125.64 : 120,270.09 = 58,869.60 : x
  2. Step 2: Convert to fraction form
    87,125.64/120,270.09 = 58,869.60/x
  3. Step 3: Cross multiply
    87,125.64x = 120,270.09 × 58,869.60
  4. Step 4: Simplify right side
    87,125.64x = 7,080,252,090.26
  5. Step 5: Solve for x
    x = 7,080,252,090.26/87,125.64
  6. Step 6: Final answer
    x = 81,264.85

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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.