Home / 55,748.80-83,720.40-53,999.20

Finding the Fourth Proportional to 55,748.80, 83,720.40 and 53,999.20

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Solution

The fourth proportional to 55,748.80, 83,720.40 and 53,999.20 is: 81,092.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,748.80 : 83,720.40 = 53,999.20 : x
  2. Step 2: Convert to fraction form
    55,748.80/83,720.40 = 53,999.20/x
  3. Step 3: Cross multiply
    55,748.80x = 83,720.40 × 53,999.20
  4. Step 4: Simplify right side
    55,748.80x = 4,520,834,623.68
  5. Step 5: Solve for x
    x = 4,520,834,623.68/55,748.80
  6. Step 6: Final answer
    x = 81,092.95

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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.