Home / 105,565.96-145,682.70-57,823.84

Finding the Fourth Proportional to 105,565.96, 145,682.70 and 57,823.84

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Solution

The fourth proportional to 105,565.96, 145,682.70 and 57,823.84 is: 79,797.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,565.96 : 145,682.70 = 57,823.84 : x
  2. Step 2: Convert to fraction form
    105,565.96/145,682.70 = 57,823.84/x
  3. Step 3: Cross multiply
    105,565.96x = 145,682.70 × 57,823.84
  4. Step 4: Simplify right side
    105,565.96x = 8,423,933,135.57
  5. Step 5: Solve for x
    x = 8,423,933,135.57/105,565.96
  6. Step 6: Final answer
    x = 79,797.82

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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.