Home / 57,404.95-79,231.68-31,920.26

Finding the Fourth Proportional to 57,404.95, 79,231.68 and 31,920.26

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Solution

The fourth proportional to 57,404.95, 79,231.68 and 31,920.26 is: 44,057.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,404.95 : 79,231.68 = 31,920.26 : x
  2. Step 2: Convert to fraction form
    57,404.95/79,231.68 = 31,920.26/x
  3. Step 3: Cross multiply
    57,404.95x = 79,231.68 × 31,920.26
  4. Step 4: Simplify right side
    57,404.95x = 2,529,095,429.68
  5. Step 5: Solve for x
    x = 2,529,095,429.68/57,404.95
  6. Step 6: Final answer
    x = 44,057.10

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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.