Home / 56,791.78-78,373.20-31,299.07

Finding the Fourth Proportional to 56,791.78, 78,373.20 and 31,299.07

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Solution

The fourth proportional to 56,791.78, 78,373.20 and 31,299.07 is: 43,193.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,791.78 : 78,373.20 = 31,299.07 : x
  2. Step 2: Convert to fraction form
    56,791.78/78,373.20 = 31,299.07/x
  3. Step 3: Cross multiply
    56,791.78x = 78,373.20 × 31,299.07
  4. Step 4: Simplify right side
    56,791.78x = 2,453,007,856.80
  5. Step 5: Solve for x
    x = 2,453,007,856.80/56,791.78
  6. Step 6: Final answer
    x = 43,193.01

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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.