Home / 84,834.19-127,163.80-38,119.87

Finding the Fourth Proportional to 84,834.19, 127,163.80 and 38,119.87

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Solution

The fourth proportional to 84,834.19, 127,163.80 and 38,119.87 is: 57,140.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,834.19 : 127,163.80 = 38,119.87 : x
  2. Step 2: Convert to fraction form
    84,834.19/127,163.80 = 38,119.87/x
  3. Step 3: Cross multiply
    84,834.19x = 127,163.80 × 38,119.87
  4. Step 4: Simplify right side
    84,834.19x = 4,847,466,908.80
  5. Step 5: Solve for x
    x = 4,847,466,908.80/84,834.19
  6. Step 6: Final answer
    x = 57,140.49

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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.