Home / 83,707.90-115,450.06-55,056.96

Finding the Fourth Proportional to 83,707.90, 115,450.06 and 55,056.96

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Solution

The fourth proportional to 83,707.90, 115,450.06 and 55,056.96 is: 75,934.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,707.90 : 115,450.06 = 55,056.96 : x
  2. Step 2: Convert to fraction form
    83,707.90/115,450.06 = 55,056.96/x
  3. Step 3: Cross multiply
    83,707.90x = 115,450.06 × 55,056.96
  4. Step 4: Simplify right side
    83,707.90x = 6,356,329,197.78
  5. Step 5: Solve for x
    x = 6,356,329,197.78/83,707.90
  6. Step 6: Final answer
    x = 75,934.64

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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.