Home / 57,420.72-79,231-31,926.36

Finding the Fourth Proportional to 57,420.72, 79,231 and 31,926.36

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Solution

The fourth proportional to 57,420.72, 79,231 and 31,926.36 is: 44,053.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,420.72 : 79,231 = 31,926.36 : x
  2. Step 2: Convert to fraction form
    57,420.72/79,231 = 31,926.36/x
  3. Step 3: Cross multiply
    57,420.72x = 79,231 × 31,926.36
  4. Step 4: Simplify right side
    57,420.72x = 2,529,557,429.16
  5. Step 5: Solve for x
    x = 2,529,557,429.16/57,420.72
  6. Step 6: Final answer
    x = 44,053.04

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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.