Home / 78,370.88-117,441.08-46,316.96

Finding the Fourth Proportional to 78,370.88, 117,441.08 and 46,316.96

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Solution

The fourth proportional to 78,370.88, 117,441.08 and 46,316.96 is: 69,407.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,370.88 : 117,441.08 = 46,316.96 : x
  2. Step 2: Convert to fraction form
    78,370.88/117,441.08 = 46,316.96/x
  3. Step 3: Cross multiply
    78,370.88x = 117,441.08 × 46,316.96
  4. Step 4: Simplify right side
    78,370.88x = 5,439,513,804.72
  5. Step 5: Solve for x
    x = 5,439,513,804.72/78,370.88
  6. Step 6: Final answer
    x = 69,407.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.