Home / 91,898.37-137,855.25-25,338.45

Finding the Fourth Proportional to 91,898.37, 137,855.25 and 25,338.45

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Solution

The fourth proportional to 91,898.37, 137,855.25 and 25,338.45 is: 38,009.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,898.37 : 137,855.25 = 25,338.45 : x
  2. Step 2: Convert to fraction form
    91,898.37/137,855.25 = 25,338.45/x
  3. Step 3: Cross multiply
    91,898.37x = 137,855.25 × 25,338.45
  4. Step 4: Simplify right side
    91,898.37x = 3,493,038,359.36
  5. Step 5: Solve for x
    x = 3,493,038,359.36/91,898.37
  6. Step 6: Final answer
    x = 38,009.80

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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.