Home / 51,806.55-71,490.29-30,578.07

Finding the Fourth Proportional to 51,806.55, 71,490.29 and 30,578.07

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Solution

The fourth proportional to 51,806.55, 71,490.29 and 30,578.07 is: 42,196.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,806.55 : 71,490.29 = 30,578.07 : x
  2. Step 2: Convert to fraction form
    51,806.55/71,490.29 = 30,578.07/x
  3. Step 3: Cross multiply
    51,806.55x = 71,490.29 × 30,578.07
  4. Step 4: Simplify right side
    51,806.55x = 2,186,034,939.05
  5. Step 5: Solve for x
    x = 2,186,034,939.05/51,806.55
  6. Step 6: Final answer
    x = 42,196.11

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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.