Home / 85,535.96-128,308.62-38,792.36

Finding the Fourth Proportional to 85,535.96, 128,308.62 and 38,792.36

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Solution

The fourth proportional to 85,535.96, 128,308.62 and 38,792.36 is: 58,190.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,535.96 : 128,308.62 = 38,792.36 : x
  2. Step 2: Convert to fraction form
    85,535.96/128,308.62 = 38,792.36/x
  3. Step 3: Cross multiply
    85,535.96x = 128,308.62 × 38,792.36
  4. Step 4: Simplify right side
    85,535.96x = 4,977,394,178.14
  5. Step 5: Solve for x
    x = 4,977,394,178.14/85,535.96
  6. Step 6: Final answer
    x = 58,190.66

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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.