Home / 66,072.40-99,123.96-19,326.16

Finding the Fourth Proportional to 66,072.40, 99,123.96 and 19,326.16

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Solution

The fourth proportional to 66,072.40, 99,123.96 and 19,326.16 is: 28,993.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,072.40 : 99,123.96 = 19,326.16 : x
  2. Step 2: Convert to fraction form
    66,072.40/99,123.96 = 19,326.16/x
  3. Step 3: Cross multiply
    66,072.40x = 99,123.96 × 19,326.16
  4. Step 4: Simplify right side
    66,072.40x = 1,915,685,510.79
  5. Step 5: Solve for x
    x = 1,915,685,510.79/66,072.40
  6. Step 6: Final answer
    x = 28,993.73

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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.