Home / 66,436.08-99,637.08-19,678.02

Finding the Fourth Proportional to 66,436.08, 99,637.08 and 19,678.02

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Solution

The fourth proportional to 66,436.08, 99,637.08 and 19,678.02 is: 29,511.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,436.08 : 99,637.08 = 19,678.02 : x
  2. Step 2: Convert to fraction form
    66,436.08/99,637.08 = 19,678.02/x
  3. Step 3: Cross multiply
    66,436.08x = 99,637.08 × 19,678.02
  4. Step 4: Simplify right side
    66,436.08x = 1,960,660,452.98
  5. Step 5: Solve for x
    x = 1,960,660,452.98/66,436.08
  6. Step 6: Final answer
    x = 29,511.98

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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.