Home / 75,432.81-113,149.23-19,270.98

Finding the Fourth Proportional to 75,432.81, 113,149.23 and 19,270.98

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Solution

The fourth proportional to 75,432.81, 113,149.23 and 19,270.98 is: 28,906.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,432.81 : 113,149.23 = 19,270.98 : x
  2. Step 2: Convert to fraction form
    75,432.81/113,149.23 = 19,270.98/x
  3. Step 3: Cross multiply
    75,432.81x = 113,149.23 × 19,270.98
  4. Step 4: Simplify right side
    75,432.81x = 2,180,496,548.35
  5. Step 5: Solve for x
    x = 2,180,496,548.35/75,432.81
  6. Step 6: Final answer
    x = 28,906.47

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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.