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Finding the Fourth Proportional to 86,334.48, 119,133 and 63,685.71

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Solution

The fourth proportional to 86,334.48, 119,133 and 63,685.71 is: 87,879.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,334.48 : 119,133 = 63,685.71 : x
  2. Step 2: Convert to fraction form
    86,334.48/119,133 = 63,685.71/x
  3. Step 3: Cross multiply
    86,334.48x = 119,133 × 63,685.71
  4. Step 4: Simplify right side
    86,334.48x = 7,587,069,689.43
  5. Step 5: Solve for x
    x = 7,587,069,689.43/86,334.48
  6. Step 6: Final answer
    x = 87,879.95

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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.