Home / 55,918.24-77,165.40-30,767.60

Finding the Fourth Proportional to 55,918.24, 77,165.40 and 30,767.60

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Solution

The fourth proportional to 55,918.24, 77,165.40 and 30,767.60 is: 42,458.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,918.24 : 77,165.40 = 30,767.60 : x
  2. Step 2: Convert to fraction form
    55,918.24/77,165.40 = 30,767.60/x
  3. Step 3: Cross multiply
    55,918.24x = 77,165.40 × 30,767.60
  4. Step 4: Simplify right side
    55,918.24x = 2,374,194,161.04
  5. Step 5: Solve for x
    x = 2,374,194,161.04/55,918.24
  6. Step 6: Final answer
    x = 42,458.31

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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.