Home / 75,228.06-103,704.84-57,291.93

Finding the Fourth Proportional to 75,228.06, 103,704.84 and 57,291.93

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Solution

The fourth proportional to 75,228.06, 103,704.84 and 57,291.93 is: 78,979.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,228.06 : 103,704.84 = 57,291.93 : x
  2. Step 2: Convert to fraction form
    75,228.06/103,704.84 = 57,291.93/x
  3. Step 3: Cross multiply
    75,228.06x = 103,704.84 × 57,291.93
  4. Step 4: Simplify right side
    75,228.06x = 5,941,450,433.94
  5. Step 5: Solve for x
    x = 5,941,450,433.94/75,228.06
  6. Step 6: Final answer
    x = 78,979.18

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1.5x scale

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.