Home / 90,736.50-125,210.44-50,448.78

Finding the Fourth Proportional to 90,736.50, 125,210.44 and 50,448.78

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Solution

The fourth proportional to 90,736.50, 125,210.44 and 50,448.78 is: 69,616.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,736.50 : 125,210.44 = 50,448.78 : x
  2. Step 2: Convert to fraction form
    90,736.50/125,210.44 = 50,448.78/x
  3. Step 3: Cross multiply
    90,736.50x = 125,210.44 × 50,448.78
  4. Step 4: Simplify right side
    90,736.50x = 6,316,713,815.14
  5. Step 5: Solve for x
    x = 6,316,713,815.14/90,736.50
  6. Step 6: Final answer
    x = 69,616.02

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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.