Home / 90,045.45-124,261.01-49,758.34

Finding the Fourth Proportional to 90,045.45, 124,261.01 and 49,758.34

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Solution

The fourth proportional to 90,045.45, 124,261.01 and 49,758.34 is: 68,665.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,045.45 : 124,261.01 = 49,758.34 : x
  2. Step 2: Convert to fraction form
    90,045.45/124,261.01 = 49,758.34/x
  3. Step 3: Cross multiply
    90,045.45x = 124,261.01 × 49,758.34
  4. Step 4: Simplify right side
    90,045.45x = 6,183,021,584.32
  5. Step 5: Solve for x
    x = 6,183,021,584.32/90,045.45
  6. Step 6: Final answer
    x = 68,665.56

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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.