Home / 85,934.26-128,901.40-26,774.70

Finding the Fourth Proportional to 85,934.26, 128,901.40 and 26,774.70

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Solution

The fourth proportional to 85,934.26, 128,901.40 and 26,774.70 is: 40,162.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,934.26 : 128,901.40 = 26,774.70 : x
  2. Step 2: Convert to fraction form
    85,934.26/128,901.40 = 26,774.70/x
  3. Step 3: Cross multiply
    85,934.26x = 128,901.40 × 26,774.70
  4. Step 4: Simplify right side
    85,934.26x = 3,451,296,314.58
  5. Step 5: Solve for x
    x = 3,451,296,314.58/85,934.26
  6. Step 6: Final answer
    x = 40,162.05

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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.