Home / 55,713.12-76,884.12-30,562.80

Finding the Fourth Proportional to 55,713.12, 76,884.12 and 30,562.80

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Solution

The fourth proportional to 55,713.12, 76,884.12 and 30,562.80 is: 42,176.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,713.12 : 76,884.12 = 30,562.80 : x
  2. Step 2: Convert to fraction form
    55,713.12/76,884.12 = 30,562.80/x
  3. Step 3: Cross multiply
    55,713.12x = 76,884.12 × 30,562.80
  4. Step 4: Simplify right side
    55,713.12x = 2,349,793,982.74
  5. Step 5: Solve for x
    x = 2,349,793,982.74/55,713.12
  6. Step 6: Final answer
    x = 42,176.67

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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.