Home / 84,276.24-126,309.04-42,168.36

Finding the Fourth Proportional to 84,276.24, 126,309.04 and 42,168.36

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Solution

The fourth proportional to 84,276.24, 126,309.04 and 42,168.36 is: 63,199.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,276.24 : 126,309.04 = 42,168.36 : x
  2. Step 2: Convert to fraction form
    84,276.24/126,309.04 = 42,168.36/x
  3. Step 3: Cross multiply
    84,276.24x = 126,309.04 × 42,168.36
  4. Step 4: Simplify right side
    84,276.24x = 5,326,245,069.97
  5. Step 5: Solve for x
    x = 5,326,245,069.97/84,276.24
  6. Step 6: Final answer
    x = 63,199.84

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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.