Home / 84,563.20-126,756.24-28,389.52

Finding the Fourth Proportional to 84,563.20, 126,756.24 and 28,389.52

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Solution

The fourth proportional to 84,563.20, 126,756.24 and 28,389.52 is: 42,554.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,563.20 : 126,756.24 = 28,389.52 : x
  2. Step 2: Convert to fraction form
    84,563.20/126,756.24 = 28,389.52/x
  3. Step 3: Cross multiply
    84,563.20x = 126,756.24 × 28,389.52
  4. Step 4: Simplify right side
    84,563.20x = 3,598,548,810.60
  5. Step 5: Solve for x
    x = 3,598,548,810.60/84,563.20
  6. Step 6: Final answer
    x = 42,554.55

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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.