Home / 55,911.31-77,155.63-30,416.96

Finding the Fourth Proportional to 55,911.31, 77,155.63 and 30,416.96

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Solution

The fourth proportional to 55,911.31, 77,155.63 and 30,416.96 is: 41,974.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,911.31 : 77,155.63 = 30,416.96 : x
  2. Step 2: Convert to fraction form
    55,911.31/77,155.63 = 30,416.96/x
  3. Step 3: Cross multiply
    55,911.31x = 77,155.63 × 30,416.96
  4. Step 4: Simplify right side
    55,911.31x = 2,346,839,828.33
  5. Step 5: Solve for x
    x = 2,346,839,828.33/55,911.31
  6. Step 6: Final answer
    x = 41,974.33

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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.