Home / 57,029.72-78,697.80-31,534.56

Finding the Fourth Proportional to 57,029.72, 78,697.80 and 31,534.56

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Solution

The fourth proportional to 57,029.72, 78,697.80 and 31,534.56 is: 43,515.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,029.72 : 78,697.80 = 31,534.56 : x
  2. Step 2: Convert to fraction form
    57,029.72/78,697.80 = 31,534.56/x
  3. Step 3: Cross multiply
    57,029.72x = 78,697.80 × 31,534.56
  4. Step 4: Simplify right side
    57,029.72x = 2,481,700,495.97
  5. Step 5: Solve for x
    x = 2,481,700,495.97/57,029.72
  6. Step 6: Final answer
    x = 43,515.92

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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.