Home / 90,103.92-135,024.65-43,302.12

Finding the Fourth Proportional to 90,103.92, 135,024.65 and 43,302.12

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Solution

The fourth proportional to 90,103.92, 135,024.65 and 43,302.12 is: 64,890.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,103.92 : 135,024.65 = 43,302.12 : x
  2. Step 2: Convert to fraction form
    90,103.92/135,024.65 = 43,302.12/x
  3. Step 3: Cross multiply
    90,103.92x = 135,024.65 × 43,302.12
  4. Step 4: Simplify right side
    90,103.92x = 5,846,853,597.26
  5. Step 5: Solve for x
    x = 5,846,853,597.26/90,103.92
  6. Step 6: Final answer
    x = 64,890.11

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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.