Home / 55,641.09-83,461.64-13,520.96

Finding the Fourth Proportional to 55,641.09, 83,461.64 and 13,520.96

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Solution

The fourth proportional to 55,641.09, 83,461.64 and 13,520.96 is: 20,281.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,641.09 : 83,461.64 = 13,520.96 : x
  2. Step 2: Convert to fraction form
    55,641.09/83,461.64 = 13,520.96/x
  3. Step 3: Cross multiply
    55,641.09x = 83,461.64 × 13,520.96
  4. Step 4: Simplify right side
    55,641.09x = 1,128,481,495.97
  5. Step 5: Solve for x
    x = 1,128,481,495.97/55,641.09
  6. Step 6: Final answer
    x = 20,281.44

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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.