Home / 87,687.01-121,007.93-47,400.80

Finding the Fourth Proportional to 87,687.01, 121,007.93 and 47,400.80

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Solution

The fourth proportional to 87,687.01, 121,007.93 and 47,400.80 is: 65,413.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,687.01 : 121,007.93 = 47,400.80 : x
  2. Step 2: Convert to fraction form
    87,687.01/121,007.93 = 47,400.80/x
  3. Step 3: Cross multiply
    87,687.01x = 121,007.93 × 47,400.80
  4. Step 4: Simplify right side
    87,687.01x = 5,735,871,846.30
  5. Step 5: Solve for x
    x = 5,735,871,846.30/87,687.01
  6. Step 6: Final answer
    x = 65,413.02

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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.