Home / 105,571.52-145,688.88-57,824.96

Finding the Fourth Proportional to 105,571.52, 145,688.88 and 57,824.96

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Solution

The fourth proportional to 105,571.52, 145,688.88 and 57,824.96 is: 79,798.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,571.52 : 145,688.88 = 57,824.96 : x
  2. Step 2: Convert to fraction form
    105,571.52/145,688.88 = 57,824.96/x
  3. Step 3: Cross multiply
    105,571.52x = 145,688.88 × 57,824.96
  4. Step 4: Simplify right side
    105,571.52x = 8,424,453,658.44
  5. Step 5: Solve for x
    x = 8,424,453,658.44/105,571.52
  6. Step 6: Final answer
    x = 79,798.54

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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.