Home / 51,557.06-71,142.41-31,406.63

Finding the Fourth Proportional to 51,557.06, 71,142.41 and 31,406.63

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Solution

The fourth proportional to 51,557.06, 71,142.41 and 31,406.63 is: 43,337.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,557.06 : 71,142.41 = 31,406.63 : x
  2. Step 2: Convert to fraction form
    51,557.06/71,142.41 = 31,406.63/x
  3. Step 3: Cross multiply
    51,557.06x = 71,142.41 × 31,406.63
  4. Step 4: Simplify right side
    51,557.06x = 2,234,342,835.43
  5. Step 5: Solve for x
    x = 2,234,342,835.43/51,557.06
  6. Step 6: Final answer
    x = 43,337.29

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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.