Home / 84,528.36-126,789.84-40,187.16

Finding the Fourth Proportional to 84,528.36, 126,789.84 and 40,187.16

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Solution

The fourth proportional to 84,528.36, 126,789.84 and 40,187.16 is: 60,279.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,528.36 : 126,789.84 = 40,187.16 : x
  2. Step 2: Convert to fraction form
    84,528.36/126,789.84 = 40,187.16/x
  3. Step 3: Cross multiply
    84,528.36x = 126,789.84 × 40,187.16
  4. Step 4: Simplify right side
    84,528.36x = 5,095,323,586.45
  5. Step 5: Solve for x
    x = 5,095,323,586.45/84,528.36
  6. Step 6: Final answer
    x = 60,279.46

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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.