Home / 85,706.18-128,574.93-26,537.84

Finding the Fourth Proportional to 85,706.18, 128,574.93 and 26,537.84

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Solution

The fourth proportional to 85,706.18, 128,574.93 and 26,537.84 is: 39,811.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,706.18 : 128,574.93 = 26,537.84 : x
  2. Step 2: Convert to fraction form
    85,706.18/128,574.93 = 26,537.84/x
  3. Step 3: Cross multiply
    85,706.18x = 128,574.93 × 26,537.84
  4. Step 4: Simplify right side
    85,706.18x = 3,412,100,920.35
  5. Step 5: Solve for x
    x = 3,412,100,920.35/85,706.18
  6. Step 6: Final answer
    x = 39,811.61

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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.