Home / 57,080.60-78,768.96-31,929.56

Finding the Fourth Proportional to 57,080.60, 78,768.96 and 31,929.56

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Solution

The fourth proportional to 57,080.60, 78,768.96 and 31,929.56 is: 44,061.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,080.60 : 78,768.96 = 31,929.56 : x
  2. Step 2: Convert to fraction form
    57,080.60/78,768.96 = 31,929.56/x
  3. Step 3: Cross multiply
    57,080.60x = 78,768.96 × 31,929.56
  4. Step 4: Simplify right side
    57,080.60x = 2,515,058,234.46
  5. Step 5: Solve for x
    x = 2,515,058,234.46/57,080.60
  6. Step 6: Final answer
    x = 44,061.52

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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.