Home / 66,548.07-99,810.92-19,790.01

Finding the Fourth Proportional to 66,548.07, 99,810.92 and 19,790.01

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Solution

The fourth proportional to 66,548.07, 99,810.92 and 19,790.01 is: 29,681.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,548.07 : 99,810.92 = 19,790.01 : x
  2. Step 2: Convert to fraction form
    66,548.07/99,810.92 = 19,790.01/x
  3. Step 3: Cross multiply
    66,548.07x = 99,810.92 × 19,790.01
  4. Step 4: Simplify right side
    66,548.07x = 1,975,259,005.96
  5. Step 5: Solve for x
    x = 1,975,259,005.96/66,548.07
  6. Step 6: Final answer
    x = 29,681.69

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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.