Home / 87,740.06-121,071.03-49,500.21

Finding the Fourth Proportional to 87,740.06, 121,071.03 and 49,500.21

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Solution

The fourth proportional to 87,740.06, 121,071.03 and 49,500.21 is: 68,304.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,740.06 : 121,071.03 = 49,500.21 : x
  2. Step 2: Convert to fraction form
    87,740.06/121,071.03 = 49,500.21/x
  3. Step 3: Cross multiply
    87,740.06x = 121,071.03 × 49,500.21
  4. Step 4: Simplify right side
    87,740.06x = 5,993,041,409.92
  5. Step 5: Solve for x
    x = 5,993,041,409.92/87,740.06
  6. Step 6: Final answer
    x = 68,304.51

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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.