Home / 83,828.64-125,742.96-52,685.76

Finding the Fourth Proportional to 83,828.64, 125,742.96 and 52,685.76

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Solution

The fourth proportional to 83,828.64, 125,742.96 and 52,685.76 is: 79,028.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,828.64 : 125,742.96 = 52,685.76 : x
  2. Step 2: Convert to fraction form
    83,828.64/125,742.96 = 52,685.76/x
  3. Step 3: Cross multiply
    83,828.64x = 125,742.96 × 52,685.76
  4. Step 4: Simplify right side
    83,828.64x = 6,624,863,412.25
  5. Step 5: Solve for x
    x = 6,624,863,412.25/83,828.64
  6. Step 6: Final answer
    x = 79,028.64

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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.