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Finding the Fourth Proportional to 78,832.80, 118,054.80 and 52,394.40

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Solution

The fourth proportional to 78,832.80, 118,054.80 and 52,394.40 is: 78,462.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,832.80 : 118,054.80 = 52,394.40 : x
  2. Step 2: Convert to fraction form
    78,832.80/118,054.80 = 52,394.40/x
  3. Step 3: Cross multiply
    78,832.80x = 118,054.80 × 52,394.40
  4. Step 4: Simplify right side
    78,832.80x = 6,185,410,413.12
  5. Step 5: Solve for x
    x = 6,185,410,413.12/78,832.80
  6. Step 6: Final answer
    x = 78,462.40

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1.5x scale

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.