Home / 90,998.78-136,491.51-31,022.29

Finding the Fourth Proportional to 90,998.78, 136,491.51 and 31,022.29

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Solution

The fourth proportional to 90,998.78, 136,491.51 and 31,022.29 is: 46,531.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,998.78 : 136,491.51 = 31,022.29 : x
  2. Step 2: Convert to fraction form
    90,998.78/136,491.51 = 31,022.29/x
  3. Step 3: Cross multiply
    90,998.78x = 136,491.51 × 31,022.29
  4. Step 4: Simplify right side
    90,998.78x = 4,234,279,492.71
  5. Step 5: Solve for x
    x = 4,234,279,492.71/90,998.78
  6. Step 6: Final answer
    x = 46,531.17

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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.