Home / 85,952.56-118,619.76-57,222.64

Finding the Fourth Proportional to 85,952.56, 118,619.76 and 57,222.64

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Solution

The fourth proportional to 85,952.56, 118,619.76 and 57,222.64 is: 78,970.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,952.56 : 118,619.76 = 57,222.64 : x
  2. Step 2: Convert to fraction form
    85,952.56/118,619.76 = 57,222.64/x
  3. Step 3: Cross multiply
    85,952.56x = 118,619.76 × 57,222.64
  4. Step 4: Simplify right side
    85,952.56x = 6,787,735,823.37
  5. Step 5: Solve for x
    x = 6,787,735,823.37/85,952.56
  6. Step 6: Final answer
    x = 78,970.72

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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.