Home / 55,764.58-76,955.25-30,615.70

Finding the Fourth Proportional to 55,764.58, 76,955.25 and 30,615.70

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Solution

The fourth proportional to 55,764.58, 76,955.25 and 30,615.70 is: 42,249.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,764.58 : 76,955.25 = 30,615.70 : x
  2. Step 2: Convert to fraction form
    55,764.58/76,955.25 = 30,615.70/x
  3. Step 3: Cross multiply
    55,764.58x = 76,955.25 × 30,615.70
  4. Step 4: Simplify right side
    55,764.58x = 2,356,038,847.43
  5. Step 5: Solve for x
    x = 2,356,038,847.43/55,764.58
  6. Step 6: Final answer
    x = 42,249.74

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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.