Home / 57,829.44-79,870.32-38,933.76

Finding the Fourth Proportional to 57,829.44, 79,870.32 and 38,933.76

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Solution

The fourth proportional to 57,829.44, 79,870.32 and 38,933.76 is: 53,772.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,829.44 : 79,870.32 = 38,933.76 : x
  2. Step 2: Convert to fraction form
    57,829.44/79,870.32 = 38,933.76/x
  3. Step 3: Cross multiply
    57,829.44x = 79,870.32 × 38,933.76
  4. Step 4: Simplify right side
    57,829.44x = 3,109,651,870.00
  5. Step 5: Solve for x
    x = 3,109,651,870.00/57,829.44
  6. Step 6: Final answer
    x = 53,772.82

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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.