Home / 90,898.32-136,354.76-31,732.68

Finding the Fourth Proportional to 90,898.32, 136,354.76 and 31,732.68

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Solution

The fourth proportional to 90,898.32, 136,354.76 and 31,732.68 is: 47,601.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,898.32 : 136,354.76 = 31,732.68 : x
  2. Step 2: Convert to fraction form
    90,898.32/136,354.76 = 31,732.68/x
  3. Step 3: Cross multiply
    90,898.32x = 136,354.76 × 31,732.68
  4. Step 4: Simplify right side
    90,898.32x = 4,326,901,965.56
  5. Step 5: Solve for x
    x = 4,326,901,965.56/90,898.32
  6. Step 6: Final answer
    x = 47,601.56

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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.