Home / 84,210.59-126,321.35-28,048.43

Finding the Fourth Proportional to 84,210.59, 126,321.35 and 28,048.43

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Solution

The fourth proportional to 84,210.59, 126,321.35 and 28,048.43 is: 42,074.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,210.59 : 126,321.35 = 28,048.43 : x
  2. Step 2: Convert to fraction form
    84,210.59/126,321.35 = 28,048.43/x
  3. Step 3: Cross multiply
    84,210.59x = 126,321.35 × 28,048.43
  4. Step 4: Simplify right side
    84,210.59x = 3,543,114,771.13
  5. Step 5: Solve for x
    x = 3,543,114,771.13/84,210.59
  6. Step 6: Final answer
    x = 42,074.46

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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.