Home / 89,828.90-134,755.64-30,648.68

Finding the Fourth Proportional to 89,828.90, 134,755.64 and 30,648.68

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Solution

The fourth proportional to 89,828.90, 134,755.64 and 30,648.68 is: 45,977.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,828.90 : 134,755.64 = 30,648.68 : x
  2. Step 2: Convert to fraction form
    89,828.90/134,755.64 = 30,648.68/x
  3. Step 3: Cross multiply
    89,828.90x = 134,755.64 × 30,648.68
  4. Step 4: Simplify right side
    89,828.90x = 4,130,081,661.53
  5. Step 5: Solve for x
    x = 4,130,081,661.53/89,828.90
  6. Step 6: Final answer
    x = 45,977.21

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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.