Home / 55,936.56-77,192.40-30,787.68

Finding the Fourth Proportional to 55,936.56, 77,192.40 and 30,787.68

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Solution

The fourth proportional to 55,936.56, 77,192.40 and 30,787.68 is: 42,486.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,936.56 : 77,192.40 = 30,787.68 : x
  2. Step 2: Convert to fraction form
    55,936.56/77,192.40 = 30,787.68/x
  3. Step 3: Cross multiply
    55,936.56x = 77,192.40 × 30,787.68
  4. Step 4: Simplify right side
    55,936.56x = 2,376,574,909.63
  5. Step 5: Solve for x
    x = 2,376,574,909.63/55,936.56
  6. Step 6: Final answer
    x = 42,486.97

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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.