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Finding the Fourth Proportional to 55,848.80, 83,744.40 and 20,770.40

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Solution

The fourth proportional to 55,848.80, 83,744.40 and 20,770.40 is: 31,144.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,848.80 : 83,744.40 = 20,770.40 : x
  2. Step 2: Convert to fraction form
    55,848.80/83,744.40 = 20,770.40/x
  3. Step 3: Cross multiply
    55,848.80x = 83,744.40 × 20,770.40
  4. Step 4: Simplify right side
    55,848.80x = 1,739,404,685.76
  5. Step 5: Solve for x
    x = 1,739,404,685.76/55,848.80
  6. Step 6: Final answer
    x = 31,144.89

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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.