Home / 89,128.92-133,671.36-39,221.52

Finding the Fourth Proportional to 89,128.92, 133,671.36 and 39,221.52

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Solution

The fourth proportional to 89,128.92, 133,671.36 and 39,221.52 is: 58,822.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,128.92 : 133,671.36 = 39,221.52 : x
  2. Step 2: Convert to fraction form
    89,128.92/133,671.36 = 39,221.52/x
  3. Step 3: Cross multiply
    89,128.92x = 133,671.36 × 39,221.52
  4. Step 4: Simplify right side
    89,128.92x = 5,242,793,919.67
  5. Step 5: Solve for x
    x = 5,242,793,919.67/89,128.92
  6. Step 6: Final answer
    x = 58,822.59

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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.