Home / 105,529.70-145,625.40-57,773.90

Finding the Fourth Proportional to 105,529.70, 145,625.40 and 57,773.90

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Solution

The fourth proportional to 105,529.70, 145,625.40 and 57,773.90 is: 79,724.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,529.70 : 145,625.40 = 57,773.90 : x
  2. Step 2: Convert to fraction form
    105,529.70/145,625.40 = 57,773.90/x
  3. Step 3: Cross multiply
    105,529.70x = 145,625.40 × 57,773.90
  4. Step 4: Simplify right side
    105,529.70x = 8,413,347,297.06
  5. Step 5: Solve for x
    x = 8,413,347,297.06/105,529.70
  6. Step 6: Final answer
    x = 79,724.92

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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.