Home / 55,850.31-77,073.53-30,699.81

Finding the Fourth Proportional to 55,850.31, 77,073.53 and 30,699.81

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Solution

The fourth proportional to 55,850.31, 77,073.53 and 30,699.81 is: 42,365.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,850.31 : 77,073.53 = 30,699.81 : x
  2. Step 2: Convert to fraction form
    55,850.31/77,073.53 = 30,699.81/x
  3. Step 3: Cross multiply
    55,850.31x = 77,073.53 × 30,699.81
  4. Step 4: Simplify right side
    55,850.31x = 2,366,142,573.53
  5. Step 5: Solve for x
    x = 2,366,142,573.53/55,850.31
  6. Step 6: Final answer
    x = 42,365.79

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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.