Home / 55,915.49-77,191.94-43,139.99

Finding the Fourth Proportional to 55,915.49, 77,191.94 and 43,139.99

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Solution

The fourth proportional to 55,915.49, 77,191.94 and 43,139.99 is: 59,555.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,915.49 : 77,191.94 = 43,139.99 : x
  2. Step 2: Convert to fraction form
    55,915.49/77,191.94 = 43,139.99/x
  3. Step 3: Cross multiply
    55,915.49x = 77,191.94 × 43,139.99
  4. Step 4: Simplify right side
    55,915.49x = 3,330,059,519.68
  5. Step 5: Solve for x
    x = 3,330,059,519.68/55,915.49
  6. Step 6: Final answer
    x = 59,555.22

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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.