Home / 90,024.38-124,234.95-49,739.07

Finding the Fourth Proportional to 90,024.38, 124,234.95 and 49,739.07

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Solution

The fourth proportional to 90,024.38, 124,234.95 and 49,739.07 is: 68,640.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,024.38 : 124,234.95 = 49,739.07 : x
  2. Step 2: Convert to fraction form
    90,024.38/124,234.95 = 49,739.07/x
  3. Step 3: Cross multiply
    90,024.38x = 124,234.95 × 49,739.07
  4. Step 4: Simplify right side
    90,024.38x = 6,179,330,315.21
  5. Step 5: Solve for x
    x = 6,179,330,315.21/90,024.38
  6. Step 6: Final answer
    x = 68,640.63

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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.