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Finding the Fourth Proportional to 88,828.80, 133,048.80 and 77,164.80

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Solution

The fourth proportional to 88,828.80, 133,048.80 and 77,164.80 is: 115,578.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,828.80 : 133,048.80 = 77,164.80 : x
  2. Step 2: Convert to fraction form
    88,828.80/133,048.80 = 77,164.80/x
  3. Step 3: Cross multiply
    88,828.80x = 133,048.80 × 77,164.80
  4. Step 4: Simplify right side
    88,828.80x = 10,266,684,042.24
  5. Step 5: Solve for x
    x = 10,266,684,042.24/88,828.80
  6. Step 6: Final answer
    x = 115,578.33

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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.