Home / 55,920.52-77,170.31-30,770.02

Finding the Fourth Proportional to 55,920.52, 77,170.31 and 30,770.02

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Solution

The fourth proportional to 55,920.52, 77,170.31 and 30,770.02 is: 42,462.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,920.52 : 77,170.31 = 30,770.02 : x
  2. Step 2: Convert to fraction form
    55,920.52/77,170.31 = 30,770.02/x
  3. Step 3: Cross multiply
    55,920.52x = 77,170.31 × 30,770.02
  4. Step 4: Simplify right side
    55,920.52x = 2,374,531,596.25
  5. Step 5: Solve for x
    x = 2,374,531,596.25/55,920.52
  6. Step 6: Final answer
    x = 42,462.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.