Home / 75,988.28-113,982.51-19,828.35

Finding the Fourth Proportional to 75,988.28, 113,982.51 and 19,828.35

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Solution

The fourth proportional to 75,988.28, 113,982.51 and 19,828.35 is: 29,742.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,988.28 : 113,982.51 = 19,828.35 : x
  2. Step 2: Convert to fraction form
    75,988.28/113,982.51 = 19,828.35/x
  3. Step 3: Cross multiply
    75,988.28x = 113,982.51 × 19,828.35
  4. Step 4: Simplify right side
    75,988.28x = 2,260,085,102.16
  5. Step 5: Solve for x
    x = 2,260,085,102.16/75,988.28
  6. Step 6: Final answer
    x = 29,742.55

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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.