Home / 57,329.10-79,111.89-31,836.78

Finding the Fourth Proportional to 57,329.10, 79,111.89 and 31,836.78

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Solution

The fourth proportional to 57,329.10, 79,111.89 and 31,836.78 is: 43,933.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,329.10 : 79,111.89 = 31,836.78 : x
  2. Step 2: Convert to fraction form
    57,329.10/79,111.89 = 31,836.78/x
  3. Step 3: Cross multiply
    57,329.10x = 79,111.89 × 31,836.78
  4. Step 4: Simplify right side
    57,329.10x = 2,518,667,837.31
  5. Step 5: Solve for x
    x = 2,518,667,837.31/57,329.10
  6. Step 6: Final answer
    x = 43,933.50

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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.