Home / 86,313.22-129,466.73-30,153.13

Finding the Fourth Proportional to 86,313.22, 129,466.73 and 30,153.13

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Solution

The fourth proportional to 86,313.22, 129,466.73 and 30,153.13 is: 45,228.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,313.22 : 129,466.73 = 30,153.13 : x
  2. Step 2: Convert to fraction form
    86,313.22/129,466.73 = 30,153.13/x
  3. Step 3: Cross multiply
    86,313.22x = 129,466.73 × 30,153.13
  4. Step 4: Simplify right side
    86,313.22x = 3,903,826,892.08
  5. Step 5: Solve for x
    x = 3,903,826,892.08/86,313.22
  6. Step 6: Final answer
    x = 45,228.61

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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.