Home / 90,031.93-124,245.16-49,745.32

Finding the Fourth Proportional to 90,031.93, 124,245.16 and 49,745.32

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Solution

The fourth proportional to 90,031.93, 124,245.16 and 49,745.32 is: 68,649.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,031.93 : 124,245.16 = 49,745.32 : x
  2. Step 2: Convert to fraction form
    90,031.93/124,245.16 = 49,745.32/x
  3. Step 3: Cross multiply
    90,031.93x = 124,245.16 × 49,745.32
  4. Step 4: Simplify right side
    90,031.93x = 6,180,614,807.68
  5. Step 5: Solve for x
    x = 6,180,614,807.68/90,031.93
  6. Step 6: Final answer
    x = 68,649.14

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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.