Home / 45,391.68-68,089.34-15,812.51

Finding the Fourth Proportional to 45,391.68, 68,089.34 and 15,812.51

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Solution

The fourth proportional to 45,391.68, 68,089.34 and 15,812.51 is: 23,719.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,391.68 : 68,089.34 = 15,812.51 : x
  2. Step 2: Convert to fraction form
    45,391.68/68,089.34 = 15,812.51/x
  3. Step 3: Cross multiply
    45,391.68x = 68,089.34 × 15,812.51
  4. Step 4: Simplify right side
    45,391.68x = 1,076,662,950.13
  5. Step 5: Solve for x
    x = 1,076,662,950.13/45,391.68
  6. Step 6: Final answer
    x = 23,719.39

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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.