Home / 78,263.25-117,413.30-62,313.11

Finding the Fourth Proportional to 78,263.25, 117,413.30 and 62,313.11

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Solution

The fourth proportional to 78,263.25, 117,413.30 and 62,313.11 is: 93,484.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,263.25 : 117,413.30 = 62,313.11 : x
  2. Step 2: Convert to fraction form
    78,263.25/117,413.30 = 62,313.11/x
  3. Step 3: Cross multiply
    78,263.25x = 117,413.30 × 62,313.11
  4. Step 4: Simplify right side
    78,263.25x = 7,316,388,405.57
  5. Step 5: Solve for x
    x = 7,316,388,405.57/78,263.25
  6. Step 6: Final answer
    x = 93,484.34

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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.