Home / 51,387.21-70,923.60-30,167.64

Finding the Fourth Proportional to 51,387.21, 70,923.60 and 30,167.64

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Solution

The fourth proportional to 51,387.21, 70,923.60 and 30,167.64 is: 41,636.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,387.21 : 70,923.60 = 30,167.64 : x
  2. Step 2: Convert to fraction form
    51,387.21/70,923.60 = 30,167.64/x
  3. Step 3: Cross multiply
    51,387.21x = 70,923.60 × 30,167.64
  4. Step 4: Simplify right side
    51,387.21x = 2,139,597,632.30
  5. Step 5: Solve for x
    x = 2,139,597,632.30/51,387.21
  6. Step 6: Final answer
    x = 41,636.77

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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.