Home / 55,767.84-76,959.60-30,617.28

Finding the Fourth Proportional to 55,767.84, 76,959.60 and 30,617.28

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Solution

The fourth proportional to 55,767.84, 76,959.60 and 30,617.28 is: 42,251.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,767.84 : 76,959.60 = 30,617.28 : x
  2. Step 2: Convert to fraction form
    55,767.84/76,959.60 = 30,617.28/x
  3. Step 3: Cross multiply
    55,767.84x = 76,959.60 × 30,617.28
  4. Step 4: Simplify right side
    55,767.84x = 2,356,293,621.89
  5. Step 5: Solve for x
    x = 2,356,293,621.89/55,767.84
  6. Step 6: Final answer
    x = 42,251.84

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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.