Home / 85,580.10-128,377.53-22,399.97

Finding the Fourth Proportional to 85,580.10, 128,377.53 and 22,399.97

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Solution

The fourth proportional to 85,580.10, 128,377.53 and 22,399.97 is: 33,601.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,580.10 : 128,377.53 = 22,399.97 : x
  2. Step 2: Convert to fraction form
    85,580.10/128,377.53 = 22,399.97/x
  3. Step 3: Cross multiply
    85,580.10x = 128,377.53 × 22,399.97
  4. Step 4: Simplify right side
    85,580.10x = 2,875,652,178.79
  5. Step 5: Solve for x
    x = 2,875,652,178.79/85,580.10
  6. Step 6: Final answer
    x = 33,601.88

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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.