Home / 51,558.06-71,143.78-31,407.63

Finding the Fourth Proportional to 51,558.06, 71,143.78 and 31,407.63

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Solution

The fourth proportional to 51,558.06, 71,143.78 and 31,407.63 is: 43,338.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,558.06 : 71,143.78 = 31,407.63 : x
  2. Step 2: Convert to fraction form
    51,558.06/71,143.78 = 31,407.63/x
  3. Step 3: Cross multiply
    51,558.06x = 71,143.78 × 31,407.63
  4. Step 4: Simplify right side
    51,558.06x = 2,234,457,519.04
  5. Step 5: Solve for x
    x = 2,234,457,519.04/51,558.06
  6. Step 6: Final answer
    x = 43,338.67

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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.