Home / 85,952.08-128,934.33-35,981.92

Finding the Fourth Proportional to 85,952.08, 128,934.33 and 35,981.92

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Solution

The fourth proportional to 85,952.08, 128,934.33 and 35,981.92 is: 53,975.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,952.08 : 128,934.33 = 35,981.92 : x
  2. Step 2: Convert to fraction form
    85,952.08/128,934.33 = 35,981.92/x
  3. Step 3: Cross multiply
    85,952.08x = 128,934.33 × 35,981.92
  4. Step 4: Simplify right side
    85,952.08x = 4,639,304,747.31
  5. Step 5: Solve for x
    x = 4,639,304,747.31/85,952.08
  6. Step 6: Final answer
    x = 53,975.48

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1.5x scale

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.