Home / 87,029.76-119,954.88-66,604.80

Finding the Fourth Proportional to 87,029.76, 119,954.88 and 66,604.80

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Solution

The fourth proportional to 87,029.76, 119,954.88 and 66,604.80 is: 91,802.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,029.76 : 119,954.88 = 66,604.80 : x
  2. Step 2: Convert to fraction form
    87,029.76/119,954.88 = 66,604.80/x
  3. Step 3: Cross multiply
    87,029.76x = 119,954.88 × 66,604.80
  4. Step 4: Simplify right side
    87,029.76x = 7,989,570,791.42
  5. Step 5: Solve for x
    x = 7,989,570,791.42/87,029.76
  6. Step 6: Final answer
    x = 91,802.74

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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.