Home / 55,335.78-76,364.10-30,185.28

Finding the Fourth Proportional to 55,335.78, 76,364.10 and 30,185.28

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Solution

The fourth proportional to 55,335.78, 76,364.10 and 30,185.28 is: 41,656.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,335.78 : 76,364.10 = 30,185.28 : x
  2. Step 2: Convert to fraction form
    55,335.78/76,364.10 = 30,185.28/x
  3. Step 3: Cross multiply
    55,335.78x = 76,364.10 × 30,185.28
  4. Step 4: Simplify right side
    55,335.78x = 2,305,071,740.45
  5. Step 5: Solve for x
    x = 2,305,071,740.45/55,335.78
  6. Step 6: Final answer
    x = 41,656.08

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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.