Home / 55,530.28-76,632.96-30,379.78

Finding the Fourth Proportional to 55,530.28, 76,632.96 and 30,379.78

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Solution

The fourth proportional to 55,530.28, 76,632.96 and 30,379.78 is: 41,924.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,530.28 : 76,632.96 = 30,379.78 : x
  2. Step 2: Convert to fraction form
    55,530.28/76,632.96 = 30,379.78/x
  3. Step 3: Cross multiply
    55,530.28x = 76,632.96 × 30,379.78
  4. Step 4: Simplify right side
    55,530.28x = 2,328,092,465.55
  5. Step 5: Solve for x
    x = 2,328,092,465.55/55,530.28
  6. Step 6: Final answer
    x = 41,924.74

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1.5x scale

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.