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Finding the Fourth Proportional to 88,529.60, 133,053.60 and 77,124.80

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Solution

The fourth proportional to 88,529.60, 133,053.60 and 77,124.80 is: 115,913.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,529.60 : 133,053.60 = 77,124.80 : x
  2. Step 2: Convert to fraction form
    88,529.60/133,053.60 = 77,124.80/x
  3. Step 3: Cross multiply
    88,529.60x = 133,053.60 × 77,124.80
  4. Step 4: Simplify right side
    88,529.60x = 10,261,732,289.28
  5. Step 5: Solve for x
    x = 10,261,732,289.28/88,529.60
  6. Step 6: Final answer
    x = 115,913.01

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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.