Home / 98,112.02-135,413.25-55,674.50

Finding the Fourth Proportional to 98,112.02, 135,413.25 and 55,674.50

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Solution

The fourth proportional to 98,112.02, 135,413.25 and 55,674.50 is: 76,841.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,112.02 : 135,413.25 = 55,674.50 : x
  2. Step 2: Convert to fraction form
    98,112.02/135,413.25 = 55,674.50/x
  3. Step 3: Cross multiply
    98,112.02x = 135,413.25 × 55,674.50
  4. Step 4: Simplify right side
    98,112.02x = 7,539,064,987.13
  5. Step 5: Solve for x
    x = 7,539,064,987.13/98,112.02
  6. Step 6: Final answer
    x = 76,841.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.