Home / 101,043.29-139,439.75-58,025.61

Finding the Fourth Proportional to 101,043.29, 139,439.75 and 58,025.61

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Solution

The fourth proportional to 101,043.29, 139,439.75 and 58,025.61 is: 80,075.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,043.29 : 139,439.75 = 58,025.61 : x
  2. Step 2: Convert to fraction form
    101,043.29/139,439.75 = 58,025.61/x
  3. Step 3: Cross multiply
    101,043.29x = 139,439.75 × 58,025.61
  4. Step 4: Simplify right side
    101,043.29x = 8,091,076,261.87
  5. Step 5: Solve for x
    x = 8,091,076,261.87/101,043.29
  6. Step 6: Final answer
    x = 80,075.34

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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.