Home / 67,036.32-100,530.72-19,638.36

Finding the Fourth Proportional to 67,036.32, 100,530.72 and 19,638.36

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Solution

The fourth proportional to 67,036.32, 100,530.72 and 19,638.36 is: 29,450.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,036.32 : 100,530.72 = 19,638.36 : x
  2. Step 2: Convert to fraction form
    67,036.32/100,530.72 = 19,638.36/x
  3. Step 3: Cross multiply
    67,036.32x = 100,530.72 × 19,638.36
  4. Step 4: Simplify right side
    67,036.32x = 1,974,258,470.42
  5. Step 5: Solve for x
    x = 1,974,258,470.42/67,036.32
  6. Step 6: Final answer
    x = 29,450.58

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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.