Home / 90,365.09-124,704.54-50,079.51

Finding the Fourth Proportional to 90,365.09, 124,704.54 and 50,079.51

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Solution

The fourth proportional to 90,365.09, 124,704.54 and 50,079.51 is: 69,110.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,365.09 : 124,704.54 = 50,079.51 : x
  2. Step 2: Convert to fraction form
    90,365.09/124,704.54 = 50,079.51/x
  3. Step 3: Cross multiply
    90,365.09x = 124,704.54 × 50,079.51
  4. Step 4: Simplify right side
    90,365.09x = 6,245,142,257.98
  5. Step 5: Solve for x
    x = 6,245,142,257.98/90,365.09
  6. Step 6: Final answer
    x = 69,110.12

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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.