Home / 57,101.62-78,800.34-31,609.76

Finding the Fourth Proportional to 57,101.62, 78,800.34 and 31,609.76

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Solution

The fourth proportional to 57,101.62, 78,800.34 and 31,609.76 is: 43,621.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,101.62 : 78,800.34 = 31,609.76 : x
  2. Step 2: Convert to fraction form
    57,101.62/78,800.34 = 31,609.76/x
  3. Step 3: Cross multiply
    57,101.62x = 78,800.34 × 31,609.76
  4. Step 4: Simplify right side
    57,101.62x = 2,490,859,835.32
  5. Step 5: Solve for x
    x = 2,490,859,835.32/57,101.62
  6. Step 6: Final answer
    x = 43,621.53

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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.