Home / 90,250.92-135,376.65-31,085.82

Finding the Fourth Proportional to 90,250.92, 135,376.65 and 31,085.82

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Solution

The fourth proportional to 90,250.92, 135,376.65 and 31,085.82 is: 46,628.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,250.92 : 135,376.65 = 31,085.82 : x
  2. Step 2: Convert to fraction form
    90,250.92/135,376.65 = 31,085.82/x
  3. Step 3: Cross multiply
    90,250.92x = 135,376.65 × 31,085.82
  4. Step 4: Simplify right side
    90,250.92x = 4,208,294,174.10
  5. Step 5: Solve for x
    x = 4,208,294,174.10/90,250.92
  6. Step 6: Final answer
    x = 46,628.82

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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.