Home / 85,714.20-128,586.92-26,545.84

Finding the Fourth Proportional to 85,714.20, 128,586.92 and 26,545.84

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Solution

The fourth proportional to 85,714.20, 128,586.92 and 26,545.84 is: 39,823.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,714.20 : 128,586.92 = 26,545.84 : x
  2. Step 2: Convert to fraction form
    85,714.20/128,586.92 = 26,545.84/x
  3. Step 3: Cross multiply
    85,714.20x = 128,586.92 × 26,545.84
  4. Step 4: Simplify right side
    85,714.20x = 3,413,447,804.41
  5. Step 5: Solve for x
    x = 3,413,447,804.41/85,714.20
  6. Step 6: Final answer
    x = 39,823.60

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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.