Home / 90,031.91-124,237.58-49,745.21

Finding the Fourth Proportional to 90,031.91, 124,237.58 and 49,745.21

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Solution

The fourth proportional to 90,031.91, 124,237.58 and 49,745.21 is: 68,644.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,031.91 : 124,237.58 = 49,745.21 : x
  2. Step 2: Convert to fraction form
    90,031.91/124,237.58 = 49,745.21/x
  3. Step 3: Cross multiply
    90,031.91x = 124,237.58 × 49,745.21
  4. Step 4: Simplify right side
    90,031.91x = 6,180,223,637.08
  5. Step 5: Solve for x
    x = 6,180,223,637.08/90,031.91
  6. Step 6: Final answer
    x = 68,644.82

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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.