Home / 45,391.86-68,089.61-15,812.69

Finding the Fourth Proportional to 45,391.86, 68,089.61 and 15,812.69

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Solution

The fourth proportional to 45,391.86, 68,089.61 and 15,812.69 is: 23,719.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,391.86 : 68,089.61 = 15,812.69 : x
  2. Step 2: Convert to fraction form
    45,391.86/68,089.61 = 15,812.69/x
  3. Step 3: Cross multiply
    45,391.86x = 68,089.61 × 15,812.69
  4. Step 4: Simplify right side
    45,391.86x = 1,076,679,895.15
  5. Step 5: Solve for x
    x = 1,076,679,895.15/45,391.86
  6. Step 6: Final answer
    x = 23,719.67

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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.