Home / 78,413.00-117,623.88-25,109.66

Finding the Fourth Proportional to 78,413.00, 117,623.88 and 25,109.66

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Solution

The fourth proportional to 78,413.00, 117,623.88 and 25,109.66 is: 37,665.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,413.00 : 117,623.88 = 25,109.66 : x
  2. Step 2: Convert to fraction form
    78,413.00/117,623.88 = 25,109.66/x
  3. Step 3: Cross multiply
    78,413.00x = 117,623.88 × 25,109.66
  4. Step 4: Simplify right side
    78,413.00x = 2,953,495,928.74
  5. Step 5: Solve for x
    x = 2,953,495,928.74/78,413.00
  6. Step 6: Final answer
    x = 37,665.90

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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.