Home / 89,814.30-134,721.45-30,630.30

Finding the Fourth Proportional to 89,814.30, 134,721.45 and 30,630.30

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Solution

The fourth proportional to 89,814.30, 134,721.45 and 30,630.30 is: 45,945.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,814.30 : 134,721.45 = 30,630.30 : x
  2. Step 2: Convert to fraction form
    89,814.30/134,721.45 = 30,630.30/x
  3. Step 3: Cross multiply
    89,814.30x = 134,721.45 × 30,630.30
  4. Step 4: Simplify right side
    89,814.30x = 4,126,558,429.94
  5. Step 5: Solve for x
    x = 4,126,558,429.94/89,814.30
  6. Step 6: Final answer
    x = 45,945.45

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Similar ratio
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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.