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Finding the Fourth Proportional to 86,601.32, 119,537 and 50,805.80

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Solution

The fourth proportional to 86,601.32, 119,537 and 50,805.80 is: 70,127.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,601.32 : 119,537 = 50,805.80 : x
  2. Step 2: Convert to fraction form
    86,601.32/119,537 = 50,805.80/x
  3. Step 3: Cross multiply
    86,601.32x = 119,537 × 50,805.80
  4. Step 4: Simplify right side
    86,601.32x = 6,073,172,914.60
  5. Step 5: Solve for x
    x = 6,073,172,914.60/86,601.32
  6. Step 6: Final answer
    x = 70,127.95

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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.