Home / 105,584.91-145,707.20-57,839.95

Finding the Fourth Proportional to 105,584.91, 145,707.20 and 57,839.95

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Solution

The fourth proportional to 105,584.91, 145,707.20 and 57,839.95 is: 79,819.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,584.91 : 145,707.20 = 57,839.95 : x
  2. Step 2: Convert to fraction form
    105,584.91/145,707.20 = 57,839.95/x
  3. Step 3: Cross multiply
    105,584.91x = 145,707.20 × 57,839.95
  4. Step 4: Simplify right side
    105,584.91x = 8,427,697,162.64
  5. Step 5: Solve for x
    x = 8,427,697,162.64/105,584.91
  6. Step 6: Final answer
    x = 79,819.14

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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.