Home / 75,685.90-113,535.06-31,304.38

Finding the Fourth Proportional to 75,685.90, 113,535.06 and 31,304.38

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Solution

The fourth proportional to 75,685.90, 113,535.06 and 31,304.38 is: 46,959.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,685.90 : 113,535.06 = 31,304.38 : x
  2. Step 2: Convert to fraction form
    75,685.90/113,535.06 = 31,304.38/x
  3. Step 3: Cross multiply
    75,685.90x = 113,535.06 × 31,304.38
  4. Step 4: Simplify right side
    75,685.90x = 3,554,144,661.56
  5. Step 5: Solve for x
    x = 3,554,144,661.56/75,685.90
  6. Step 6: Final answer
    x = 46,959.14

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1.5x scale

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.