Home / 105,524.33-145,623.53-57,777.66

Finding the Fourth Proportional to 105,524.33, 145,623.53 and 57,777.66

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Solution

The fourth proportional to 105,524.33, 145,623.53 and 57,777.66 is: 79,733.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,524.33 : 145,623.53 = 57,777.66 : x
  2. Step 2: Convert to fraction form
    105,524.33/145,623.53 = 57,777.66/x
  3. Step 3: Cross multiply
    105,524.33x = 145,623.53 × 57,777.66
  4. Step 4: Simplify right side
    105,524.33x = 8,413,786,515.45
  5. Step 5: Solve for x
    x = 8,413,786,515.45/105,524.33
  6. Step 6: Final answer
    x = 79,733.15

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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.