Home / 84,464.87-126,609.04-28,258.74

Finding the Fourth Proportional to 84,464.87, 126,609.04 and 28,258.74

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Solution

The fourth proportional to 84,464.87, 126,609.04 and 28,258.74 is: 42,358.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,464.87 : 126,609.04 = 28,258.74 : x
  2. Step 2: Convert to fraction form
    84,464.87/126,609.04 = 28,258.74/x
  3. Step 3: Cross multiply
    84,464.87x = 126,609.04 × 28,258.74
  4. Step 4: Simplify right side
    84,464.87x = 3,577,811,943.01
  5. Step 5: Solve for x
    x = 3,577,811,943.01/84,464.87
  6. Step 6: Final answer
    x = 42,358.58

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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.