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Finding the Fourth Proportional to 45,030, 67,544.92 and 15,456.40

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Solution

The fourth proportional to 45,030, 67,544.92 and 15,456.40 is: 23,184.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,030 : 67,544.92 = 15,456.40 : x
  2. Step 2: Convert to fraction form
    45,030/67,544.92 = 15,456.40/x
  3. Step 3: Cross multiply
    45,030x = 67,544.92 × 15,456.40
  4. Step 4: Simplify right side
    45,030x = 1,044,001,301.49
  5. Step 5: Solve for x
    x = 1,044,001,301.49/45,030
  6. Step 6: Final answer
    x = 23,184.57

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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.