Home / 55,877.40-83,814.48-20,817.36

Finding the Fourth Proportional to 55,877.40, 83,814.48 and 20,817.36

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Solution

The fourth proportional to 55,877.40, 83,814.48 and 20,817.36 is: 31,225.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,877.40 : 83,814.48 = 20,817.36 : x
  2. Step 2: Convert to fraction form
    55,877.40/83,814.48 = 20,817.36/x
  3. Step 3: Cross multiply
    55,877.40x = 83,814.48 × 20,817.36
  4. Step 4: Simplify right side
    55,877.40x = 1,744,796,203.37
  5. Step 5: Solve for x
    x = 1,744,796,203.37/55,877.40
  6. Step 6: Final answer
    x = 31,225.44

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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.