Home / 66,669.19-100,007.44-19,925.71

Finding the Fourth Proportional to 66,669.19, 100,007.44 and 19,925.71

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Solution

The fourth proportional to 66,669.19, 100,007.44 and 19,925.71 is: 29,889.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,669.19 : 100,007.44 = 19,925.71 : x
  2. Step 2: Convert to fraction form
    66,669.19/100,007.44 = 19,925.71/x
  3. Step 3: Cross multiply
    66,669.19x = 100,007.44 × 19,925.71
  4. Step 4: Simplify right side
    66,669.19x = 1,992,718,947.45
  5. Step 5: Solve for x
    x = 1,992,718,947.45/66,669.19
  6. Step 6: Final answer
    x = 29,889.65

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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.