Home / 91,212.08-125,911.06-55,413.52

Finding the Fourth Proportional to 91,212.08, 125,911.06 and 55,413.52

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Solution

The fourth proportional to 91,212.08, 125,911.06 and 55,413.52 is: 76,493.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,212.08 : 125,911.06 = 55,413.52 : x
  2. Step 2: Convert to fraction form
    91,212.08/125,911.06 = 55,413.52/x
  3. Step 3: Cross multiply
    91,212.08x = 125,911.06 × 55,413.52
  4. Step 4: Simplify right side
    91,212.08x = 6,977,174,588.22
  5. Step 5: Solve for x
    x = 6,977,174,588.22/91,212.08
  6. Step 6: Final answer
    x = 76,493.98

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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.