Home / 84,905.48-117,184.50-49,089.80

Finding the Fourth Proportional to 84,905.48, 117,184.50 and 49,089.80

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Solution

The fourth proportional to 84,905.48, 117,184.50 and 49,089.80 is: 67,752.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,905.48 : 117,184.50 = 49,089.80 : x
  2. Step 2: Convert to fraction form
    84,905.48/117,184.50 = 49,089.80/x
  3. Step 3: Cross multiply
    84,905.48x = 117,184.50 × 49,089.80
  4. Step 4: Simplify right side
    84,905.48x = 5,752,563,668.10
  5. Step 5: Solve for x
    x = 5,752,563,668.10/84,905.48
  6. Step 6: Final answer
    x = 67,752.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.