Home / 90,365.06-124,704.09-50,079.50

Finding the Fourth Proportional to 90,365.06, 124,704.09 and 50,079.50

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Solution

The fourth proportional to 90,365.06, 124,704.09 and 50,079.50 is: 69,109.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,365.06 : 124,704.09 = 50,079.50 : x
  2. Step 2: Convert to fraction form
    90,365.06/124,704.09 = 50,079.50/x
  3. Step 3: Cross multiply
    90,365.06x = 124,704.09 × 50,079.50
  4. Step 4: Simplify right side
    90,365.06x = 6,245,117,851.63
  5. Step 5: Solve for x
    x = 6,245,117,851.63/90,365.06
  6. Step 6: Final answer
    x = 69,109.88

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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.