Home / 84,448.32-126,609.56-28,255.20

Finding the Fourth Proportional to 84,448.32, 126,609.56 and 28,255.20

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Solution

The fourth proportional to 84,448.32, 126,609.56 and 28,255.20 is: 42,361.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,448.32 : 126,609.56 = 28,255.20 : x
  2. Step 2: Convert to fraction form
    84,448.32/126,609.56 = 28,255.20/x
  3. Step 3: Cross multiply
    84,448.32x = 126,609.56 × 28,255.20
  4. Step 4: Simplify right side
    84,448.32x = 3,577,378,439.71
  5. Step 5: Solve for x
    x = 3,577,378,439.71/84,448.32
  6. Step 6: Final answer
    x = 42,361.75

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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.