Home / 86,327.62-129,491.12-38,887.18

Finding the Fourth Proportional to 86,327.62, 129,491.12 and 38,887.18

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Solution

The fourth proportional to 86,327.62, 129,491.12 and 38,887.18 is: 58,330.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,327.62 : 129,491.12 = 38,887.18 : x
  2. Step 2: Convert to fraction form
    86,327.62/129,491.12 = 38,887.18/x
  3. Step 3: Cross multiply
    86,327.62x = 129,491.12 × 38,887.18
  4. Step 4: Simplify right side
    86,327.62x = 5,035,544,491.84
  5. Step 5: Solve for x
    x = 5,035,544,491.84/86,327.62
  6. Step 6: Final answer
    x = 58,330.63

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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.