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Finding the Fourth Proportional to 88,409.71, 122,008.03 and 54,437.79

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Solution

The fourth proportional to 88,409.71, 122,008.03 and 54,437.79 is: 75,125.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,409.71 : 122,008.03 = 54,437.79 : x
  2. Step 2: Convert to fraction form
    88,409.71/122,008.03 = 54,437.79/x
  3. Step 3: Cross multiply
    88,409.71x = 122,008.03 × 54,437.79
  4. Step 4: Simplify right side
    88,409.71x = 6,641,847,379.36
  5. Step 5: Solve for x
    x = 6,641,847,379.36/88,409.71
  6. Step 6: Final answer
    x = 75,125.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.