Home / 90,309.93-124,615.44-50,013.78

Finding the Fourth Proportional to 90,309.93, 124,615.44 and 50,013.78

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Solution

The fourth proportional to 90,309.93, 124,615.44 and 50,013.78 is: 69,012.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,309.93 : 124,615.44 = 50,013.78 : x
  2. Step 2: Convert to fraction form
    90,309.93/124,615.44 = 50,013.78/x
  3. Step 3: Cross multiply
    90,309.93x = 124,615.44 × 50,013.78
  4. Step 4: Simplify right side
    90,309.93x = 6,232,489,200.76
  5. Step 5: Solve for x
    x = 6,232,489,200.76/90,309.93
  6. Step 6: Final answer
    x = 69,012.22

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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.