Home / 89,815.80-134,548.68-54,668.28

Finding the Fourth Proportional to 89,815.80, 134,548.68 and 54,668.28

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Solution

The fourth proportional to 89,815.80, 134,548.68 and 54,668.28 is: 81,895.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,815.80 : 134,548.68 = 54,668.28 : x
  2. Step 2: Convert to fraction form
    89,815.80/134,548.68 = 54,668.28/x
  3. Step 3: Cross multiply
    89,815.80x = 134,548.68 × 54,668.28
  4. Step 4: Simplify right side
    89,815.80x = 7,355,544,911.87
  5. Step 5: Solve for x
    x = 7,355,544,911.87/89,815.80
  6. Step 6: Final answer
    x = 81,895.89

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1.5x scale

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.