Home / 57,273.86-79,038.35-31,780.33

Finding the Fourth Proportional to 57,273.86, 79,038.35 and 31,780.33

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Solution

The fourth proportional to 57,273.86, 79,038.35 and 31,780.33 is: 43,857.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,273.86 : 79,038.35 = 31,780.33 : x
  2. Step 2: Convert to fraction form
    57,273.86/79,038.35 = 31,780.33/x
  3. Step 3: Cross multiply
    57,273.86x = 79,038.35 × 31,780.33
  4. Step 4: Simplify right side
    57,273.86x = 2,511,864,727.51
  5. Step 5: Solve for x
    x = 2,511,864,727.51/57,273.86
  6. Step 6: Final answer
    x = 43,857.09

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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.