Home / 85,835.19-128,789.70-41,495.29

Finding the Fourth Proportional to 85,835.19, 128,789.70 and 41,495.29

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Solution

The fourth proportional to 85,835.19, 128,789.70 and 41,495.29 is: 62,260.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,835.19 : 128,789.70 = 41,495.29 : x
  2. Step 2: Convert to fraction form
    85,835.19/128,789.70 = 41,495.29/x
  3. Step 3: Cross multiply
    85,835.19x = 128,789.70 × 41,495.29
  4. Step 4: Simplify right side
    85,835.19x = 5,344,165,472.93
  5. Step 5: Solve for x
    x = 5,344,165,472.93/85,835.19
  6. Step 6: Final answer
    x = 62,260.77

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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.