Home / 57,120.27-78,823.38-31,624.83

Finding the Fourth Proportional to 57,120.27, 78,823.38 and 31,624.83

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Solution

The fourth proportional to 57,120.27, 78,823.38 and 31,624.83 is: 43,640.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,120.27 : 78,823.38 = 31,624.83 : x
  2. Step 2: Convert to fraction form
    57,120.27/78,823.38 = 31,624.83/x
  3. Step 3: Cross multiply
    57,120.27x = 78,823.38 × 31,624.83
  4. Step 4: Simplify right side
    57,120.27x = 2,492,775,992.53
  5. Step 5: Solve for x
    x = 2,492,775,992.53/57,120.27
  6. Step 6: Final answer
    x = 43,640.83

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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.