Home / 49,922.19-74,881.84-12,986.19

Finding the Fourth Proportional to 49,922.19, 74,881.84 and 12,986.19

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Solution

The fourth proportional to 49,922.19, 74,881.84 and 12,986.19 is: 19,478.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,922.19 : 74,881.84 = 12,986.19 : x
  2. Step 2: Convert to fraction form
    49,922.19/74,881.84 = 12,986.19/x
  3. Step 3: Cross multiply
    49,922.19x = 74,881.84 × 12,986.19
  4. Step 4: Simplify right side
    49,922.19x = 972,429,801.79
  5. Step 5: Solve for x
    x = 972,429,801.79/49,922.19
  6. Step 6: Final answer
    x = 19,478.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.