Home / 84,587.56-126,884.41-28,429.54

Finding the Fourth Proportional to 84,587.56, 126,884.41 and 28,429.54

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Solution

The fourth proportional to 84,587.56, 126,884.41 and 28,429.54 is: 42,645.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,587.56 : 126,884.41 = 28,429.54 : x
  2. Step 2: Convert to fraction form
    84,587.56/126,884.41 = 28,429.54/x
  3. Step 3: Cross multiply
    84,587.56x = 126,884.41 × 28,429.54
  4. Step 4: Simplify right side
    84,587.56x = 3,607,265,021.19
  5. Step 5: Solve for x
    x = 3,607,265,021.19/84,587.56
  6. Step 6: Final answer
    x = 42,645.34

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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.