Home / 89,718.60-134,513.10-50,287.80

Finding the Fourth Proportional to 89,718.60, 134,513.10 and 50,287.80

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Solution

The fourth proportional to 89,718.60, 134,513.10 and 50,287.80 is: 75,395.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,718.60 : 134,513.10 = 50,287.80 : x
  2. Step 2: Convert to fraction form
    89,718.60/134,513.10 = 50,287.80/x
  3. Step 3: Cross multiply
    89,718.60x = 134,513.10 × 50,287.80
  4. Step 4: Simplify right side
    89,718.60x = 6,764,367,870.18
  5. Step 5: Solve for x
    x = 6,764,367,870.18/89,718.60
  6. Step 6: Final answer
    x = 75,395.38

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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.