Home / 91,629.24-137,421.72-38,292.39

Finding the Fourth Proportional to 91,629.24, 137,421.72 and 38,292.39

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Solution

The fourth proportional to 91,629.24, 137,421.72 and 38,292.39 is: 57,429.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,629.24 : 137,421.72 = 38,292.39 : x
  2. Step 2: Convert to fraction form
    91,629.24/137,421.72 = 38,292.39/x
  3. Step 3: Cross multiply
    91,629.24x = 137,421.72 × 38,292.39
  4. Step 4: Simplify right side
    91,629.24x = 5,262,206,096.71
  5. Step 5: Solve for x
    x = 5,262,206,096.71/91,629.24
  6. Step 6: Final answer
    x = 57,429.33

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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.