Home / 86,405.40-119,246.54-48,682.20

Finding the Fourth Proportional to 86,405.40, 119,246.54 and 48,682.20

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Solution

The fourth proportional to 86,405.40, 119,246.54 and 48,682.20 is: 67,185.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,405.40 : 119,246.54 = 48,682.20 : x
  2. Step 2: Convert to fraction form
    86,405.40/119,246.54 = 48,682.20/x
  3. Step 3: Cross multiply
    86,405.40x = 119,246.54 × 48,682.20
  4. Step 4: Simplify right side
    86,405.40x = 5,805,183,909.59
  5. Step 5: Solve for x
    x = 5,805,183,909.59/86,405.40
  6. Step 6: Final answer
    x = 67,185.43

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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.