Home / 57,280.47-79,040.64-31,785.99

Finding the Fourth Proportional to 57,280.47, 79,040.64 and 31,785.99

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Solution

The fourth proportional to 57,280.47, 79,040.64 and 31,785.99 is: 43,861.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,280.47 : 79,040.64 = 31,785.99 : x
  2. Step 2: Convert to fraction form
    57,280.47/79,040.64 = 31,785.99/x
  3. Step 3: Cross multiply
    57,280.47x = 79,040.64 × 31,785.99
  4. Step 4: Simplify right side
    57,280.47x = 2,512,384,992.63
  5. Step 5: Solve for x
    x = 2,512,384,992.63/57,280.47
  6. Step 6: Final answer
    x = 43,861.11

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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.