Home / 90,833.70-136,331.55-53,346.90

Finding the Fourth Proportional to 90,833.70, 136,331.55 and 53,346.90

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Solution

The fourth proportional to 90,833.70, 136,331.55 and 53,346.90 is: 80,067.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,833.70 : 136,331.55 = 53,346.90 : x
  2. Step 2: Convert to fraction form
    90,833.70/136,331.55 = 53,346.90/x
  3. Step 3: Cross multiply
    90,833.70x = 136,331.55 × 53,346.90
  4. Step 4: Simplify right side
    90,833.70x = 7,272,865,564.70
  5. Step 5: Solve for x
    x = 7,272,865,564.70/90,833.70
  6. Step 6: Final answer
    x = 80,067.92

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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.