Home / 84,919.62-127,382.28-38,172.63

Finding the Fourth Proportional to 84,919.62, 127,382.28 and 38,172.63

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Solution

The fourth proportional to 84,919.62, 127,382.28 and 38,172.63 is: 57,260.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,919.62 : 127,382.28 = 38,172.63 : x
  2. Step 2: Convert to fraction form
    84,919.62/127,382.28 = 38,172.63/x
  3. Step 3: Cross multiply
    84,919.62x = 127,382.28 × 38,172.63
  4. Step 4: Simplify right side
    84,919.62x = 4,862,516,643.00
  5. Step 5: Solve for x
    x = 4,862,516,643.00/84,919.62
  6. Step 6: Final answer
    x = 57,260.23

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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.