Home / 78,368.25-117,437.15-46,314.33

Finding the Fourth Proportional to 78,368.25, 117,437.15 and 46,314.33

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Solution

The fourth proportional to 78,368.25, 117,437.15 and 46,314.33 is: 69,403.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,368.25 : 117,437.15 = 46,314.33 : x
  2. Step 2: Convert to fraction form
    78,368.25/117,437.15 = 46,314.33/x
  3. Step 3: Cross multiply
    78,368.25x = 117,437.15 × 46,314.33
  4. Step 4: Simplify right side
    78,368.25x = 5,439,022,687.79
  5. Step 5: Solve for x
    x = 5,439,022,687.79/78,368.25
  6. Step 6: Final answer
    x = 69,403.40

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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.