Home / 75,821.40-113,721.30-25,903.80

Finding the Fourth Proportional to 75,821.40, 113,721.30 and 25,903.80

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Solution

The fourth proportional to 75,821.40, 113,721.30 and 25,903.80 is: 38,852.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,821.40 : 113,721.30 = 25,903.80 : x
  2. Step 2: Convert to fraction form
    75,821.40/113,721.30 = 25,903.80/x
  3. Step 3: Cross multiply
    75,821.40x = 113,721.30 × 25,903.80
  4. Step 4: Simplify right side
    75,821.40x = 2,945,813,810.94
  5. Step 5: Solve for x
    x = 2,945,813,810.94/75,821.40
  6. Step 6: Final answer
    x = 38,852.01

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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.