Home / 85,748.04-128,626.92-26,592.12

Finding the Fourth Proportional to 85,748.04, 128,626.92 and 26,592.12

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Solution

The fourth proportional to 85,748.04, 128,626.92 and 26,592.12 is: 39,889.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,748.04 : 128,626.92 = 26,592.12 : x
  2. Step 2: Convert to fraction form
    85,748.04/128,626.92 = 26,592.12/x
  3. Step 3: Cross multiply
    85,748.04x = 128,626.92 × 26,592.12
  4. Step 4: Simplify right side
    85,748.04x = 3,420,462,491.87
  5. Step 5: Solve for x
    x = 3,420,462,491.87/85,748.04
  6. Step 6: Final answer
    x = 39,889.69

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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.