Home / 90,541.35-124,941.20-50,255.12

Finding the Fourth Proportional to 90,541.35, 124,941.20 and 50,255.12

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Solution

The fourth proportional to 90,541.35, 124,941.20 and 50,255.12 is: 69,348.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,541.35 : 124,941.20 = 50,255.12 : x
  2. Step 2: Convert to fraction form
    90,541.35/124,941.20 = 50,255.12/x
  3. Step 3: Cross multiply
    90,541.35x = 124,941.20 × 50,255.12
  4. Step 4: Simplify right side
    90,541.35x = 6,278,934,122.96
  5. Step 5: Solve for x
    x = 6,278,934,122.96/90,541.35
  6. Step 6: Final answer
    x = 69,348.80

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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.