Home / 91,454.19-137,205.93-38,128.44

Finding the Fourth Proportional to 91,454.19, 137,205.93 and 38,128.44

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Solution

The fourth proportional to 91,454.19, 137,205.93 and 38,128.44 is: 57,202.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,454.19 : 137,205.93 = 38,128.44 : x
  2. Step 2: Convert to fraction form
    91,454.19/137,205.93 = 38,128.44/x
  3. Step 3: Cross multiply
    91,454.19x = 137,205.93 × 38,128.44
  4. Step 4: Simplify right side
    91,454.19x = 5,231,448,069.65
  5. Step 5: Solve for x
    x = 5,231,448,069.65/91,454.19
  6. Step 6: Final answer
    x = 57,202.93

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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.