Home / 56,489.14-77,956.46-30,996.60

Finding the Fourth Proportional to 56,489.14, 77,956.46 and 30,996.60

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Solution

The fourth proportional to 56,489.14, 77,956.46 and 30,996.60 is: 42,776.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,489.14 : 77,956.46 = 30,996.60 : x
  2. Step 2: Convert to fraction form
    56,489.14/77,956.46 = 30,996.60/x
  3. Step 3: Cross multiply
    56,489.14x = 77,956.46 × 30,996.60
  4. Step 4: Simplify right side
    56,489.14x = 2,416,385,208.04
  5. Step 5: Solve for x
    x = 2,416,385,208.04/56,489.14
  6. Step 6: Final answer
    x = 42,776.10

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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.