Home / 55,781.46-76,977.54-30,630.96

Finding the Fourth Proportional to 55,781.46, 76,977.54 and 30,630.96

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Solution

The fourth proportional to 55,781.46, 76,977.54 and 30,630.96 is: 42,270.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,781.46 : 76,977.54 = 30,630.96 : x
  2. Step 2: Convert to fraction form
    55,781.46/76,977.54 = 30,630.96/x
  3. Step 3: Cross multiply
    55,781.46x = 76,977.54 × 30,630.96
  4. Step 4: Simplify right side
    55,781.46x = 2,357,895,948.64
  5. Step 5: Solve for x
    x = 2,357,895,948.64/55,781.46
  6. Step 6: Final answer
    x = 42,270.24

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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.