Home / 51,699.28-71,343.16-31,589.80

Finding the Fourth Proportional to 51,699.28, 71,343.16 and 31,589.80

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Solution

The fourth proportional to 51,699.28, 71,343.16 and 31,589.80 is: 43,592.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,699.28 : 71,343.16 = 31,589.80 : x
  2. Step 2: Convert to fraction form
    51,699.28/71,343.16 = 31,589.80/x
  3. Step 3: Cross multiply
    51,699.28x = 71,343.16 × 31,589.80
  4. Step 4: Simplify right side
    51,699.28x = 2,253,716,155.77
  5. Step 5: Solve for x
    x = 2,253,716,155.77/51,699.28
  6. Step 6: Final answer
    x = 43,592.80

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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.