Home / 89,816.80-134,550.18-54,669.28

Finding the Fourth Proportional to 89,816.80, 134,550.18 and 54,669.28

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Solution

The fourth proportional to 89,816.80, 134,550.18 and 54,669.28 is: 81,897.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,816.80 : 134,550.18 = 54,669.28 : x
  2. Step 2: Convert to fraction form
    89,816.80/134,550.18 = 54,669.28/x
  3. Step 3: Cross multiply
    89,816.80x = 134,550.18 × 54,669.28
  4. Step 4: Simplify right side
    89,816.80x = 7,355,761,464.47
  5. Step 5: Solve for x
    x = 7,355,761,464.47/89,816.80
  6. Step 6: Final answer
    x = 81,897.39

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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.