Home / 51,382.74-70,931.26-30,163.38

Finding the Fourth Proportional to 51,382.74, 70,931.26 and 30,163.38

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Solution

The fourth proportional to 51,382.74, 70,931.26 and 30,163.38 is: 41,639.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,382.74 : 70,931.26 = 30,163.38 : x
  2. Step 2: Convert to fraction form
    51,382.74/70,931.26 = 30,163.38/x
  3. Step 3: Cross multiply
    51,382.74x = 70,931.26 × 30,163.38
  4. Step 4: Simplify right side
    51,382.74x = 2,139,526,549.26
  5. Step 5: Solve for x
    x = 2,139,526,549.26/51,382.74
  6. Step 6: Final answer
    x = 41,639.01

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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.