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Finding the Fourth Proportional to 56,409.80, 84,614.70 and 23,118.80

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Solution

The fourth proportional to 56,409.80, 84,614.70 and 23,118.80 is: 34,678.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,409.80 : 84,614.70 = 23,118.80 : x
  2. Step 2: Convert to fraction form
    56,409.80/84,614.70 = 23,118.80/x
  3. Step 3: Cross multiply
    56,409.80x = 84,614.70 × 23,118.80
  4. Step 4: Simplify right side
    56,409.80x = 1,956,190,326.36
  5. Step 5: Solve for x
    x = 1,956,190,326.36/56,409.80
  6. Step 6: Final answer
    x = 34,678.20

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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.