Home / 90,275.46-124,817.94-79,065.36

Finding the Fourth Proportional to 90,275.46, 124,817.94 and 79,065.36

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Solution

The fourth proportional to 90,275.46, 124,817.94 and 79,065.36 is: 109,318.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,275.46 : 124,817.94 = 79,065.36 : x
  2. Step 2: Convert to fraction form
    90,275.46/124,817.94 = 79,065.36/x
  3. Step 3: Cross multiply
    90,275.46x = 124,817.94 × 79,065.36
  4. Step 4: Simplify right side
    90,275.46x = 9,868,775,360.56
  5. Step 5: Solve for x
    x = 9,868,775,360.56/90,275.46
  6. Step 6: Final answer
    x = 109,318.47

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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.