Home / 51,552.81-71,139.51-30,327.98

Finding the Fourth Proportional to 51,552.81, 71,139.51 and 30,327.98

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Solution

The fourth proportional to 51,552.81, 71,139.51 and 30,327.98 is: 41,850.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,552.81 : 71,139.51 = 30,327.98 : x
  2. Step 2: Convert to fraction form
    51,552.81/71,139.51 = 30,327.98/x
  3. Step 3: Cross multiply
    51,552.81x = 71,139.51 × 30,327.98
  4. Step 4: Simplify right side
    51,552.81x = 2,157,517,280.79
  5. Step 5: Solve for x
    x = 2,157,517,280.79/51,552.81
  6. Step 6: Final answer
    x = 41,850.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.