Home / 55,432.91-83,137.21-15,981.45

Finding the Fourth Proportional to 55,432.91, 83,137.21 and 15,981.45

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Solution

The fourth proportional to 55,432.91, 83,137.21 and 15,981.45 is: 23,968.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,432.91 : 83,137.21 = 15,981.45 : x
  2. Step 2: Convert to fraction form
    55,432.91/83,137.21 = 15,981.45/x
  3. Step 3: Cross multiply
    55,432.91x = 83,137.21 × 15,981.45
  4. Step 4: Simplify right side
    55,432.91x = 1,328,653,164.75
  5. Step 5: Solve for x
    x = 1,328,653,164.75/55,432.91
  6. Step 6: Final answer
    x = 23,968.67

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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.