Home / 77,261.33-115,673.09-49,111.40

Finding the Fourth Proportional to 77,261.33, 115,673.09 and 49,111.40

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Solution

The fourth proportional to 77,261.33, 115,673.09 and 49,111.40 is: 73,527.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,261.33 : 115,673.09 = 49,111.40 : x
  2. Step 2: Convert to fraction form
    77,261.33/115,673.09 = 49,111.40/x
  3. Step 3: Cross multiply
    77,261.33x = 115,673.09 × 49,111.40
  4. Step 4: Simplify right side
    77,261.33x = 5,680,866,568.30
  5. Step 5: Solve for x
    x = 5,680,866,568.30/77,261.33
  6. Step 6: Final answer
    x = 73,527.95

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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.