Home / 45,304.21-67,918.91-19,985.69

Finding the Fourth Proportional to 45,304.21, 67,918.91 and 19,985.69

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Solution

The fourth proportional to 45,304.21, 67,918.91 and 19,985.69 is: 29,962.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,304.21 : 67,918.91 = 19,985.69 : x
  2. Step 2: Convert to fraction form
    45,304.21/67,918.91 = 19,985.69/x
  3. Step 3: Cross multiply
    45,304.21x = 67,918.91 × 19,985.69
  4. Step 4: Simplify right side
    45,304.21x = 1,357,405,968.22
  5. Step 5: Solve for x
    x = 1,357,405,968.22/45,304.21
  6. Step 6: Final answer
    x = 29,962.03

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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.