Home / 90,031.44-124,242.66-49,745.04

Finding the Fourth Proportional to 90,031.44, 124,242.66 and 49,745.04

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Solution

The fourth proportional to 90,031.44, 124,242.66 and 49,745.04 is: 68,647.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,031.44 : 124,242.66 = 49,745.04 : x
  2. Step 2: Convert to fraction form
    90,031.44/124,242.66 = 49,745.04/x
  3. Step 3: Cross multiply
    90,031.44x = 124,242.66 × 49,745.04
  4. Step 4: Simplify right side
    90,031.44x = 6,180,456,091.41
  5. Step 5: Solve for x
    x = 6,180,456,091.41/90,031.44
  6. Step 6: Final answer
    x = 68,647.75

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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.