Home / 57,420.38-79,242.75-31,929.35

Finding the Fourth Proportional to 57,420.38, 79,242.75 and 31,929.35

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Solution

The fourth proportional to 57,420.38, 79,242.75 and 31,929.35 is: 44,063.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,420.38 : 79,242.75 = 31,929.35 : x
  2. Step 2: Convert to fraction form
    57,420.38/79,242.75 = 31,929.35/x
  3. Step 3: Cross multiply
    57,420.38x = 79,242.75 × 31,929.35
  4. Step 4: Simplify right side
    57,420.38x = 2,530,169,103.50
  5. Step 5: Solve for x
    x = 2,530,169,103.50/57,420.38
  6. Step 6: Final answer
    x = 44,063.96

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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.