Home / 86,621.28-119,635.80-58,277.76

Finding the Fourth Proportional to 86,621.28, 119,635.80 and 58,277.76

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Solution

The fourth proportional to 86,621.28, 119,635.80 and 58,277.76 is: 80,489.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,621.28 : 119,635.80 = 58,277.76 : x
  2. Step 2: Convert to fraction form
    86,621.28/119,635.80 = 58,277.76/x
  3. Step 3: Cross multiply
    86,621.28x = 119,635.80 × 58,277.76
  4. Step 4: Simplify right side
    86,621.28x = 6,972,106,439.81
  5. Step 5: Solve for x
    x = 6,972,106,439.81/86,621.28
  6. Step 6: Final answer
    x = 80,489.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.