Home / 86,648.20-129,984.68-26,681.74

Finding the Fourth Proportional to 86,648.20, 129,984.68 and 26,681.74

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Solution

The fourth proportional to 86,648.20, 129,984.68 and 26,681.74 is: 40,026.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,648.20 : 129,984.68 = 26,681.74 : x
  2. Step 2: Convert to fraction form
    86,648.20/129,984.68 = 26,681.74/x
  3. Step 3: Cross multiply
    86,648.20x = 129,984.68 × 26,681.74
  4. Step 4: Simplify right side
    86,648.20x = 3,468,217,435.74
  5. Step 5: Solve for x
    x = 3,468,217,435.74/86,648.20
  6. Step 6: Final answer
    x = 40,026.42

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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.