Home / 84,585.44-126,880.24-28,426.36

Finding the Fourth Proportional to 84,585.44, 126,880.24 and 28,426.36

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Solution

The fourth proportional to 84,585.44, 126,880.24 and 28,426.36 is: 42,640.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,585.44 : 126,880.24 = 28,426.36 : x
  2. Step 2: Convert to fraction form
    84,585.44/126,880.24 = 28,426.36/x
  3. Step 3: Cross multiply
    84,585.44x = 126,880.24 × 28,426.36
  4. Step 4: Simplify right side
    84,585.44x = 3,606,743,379.13
  5. Step 5: Solve for x
    x = 3,606,743,379.13/84,585.44
  6. Step 6: Final answer
    x = 42,640.24

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1.5x scale

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.