Home / 55,861.92-77,092.56-30,716.64

Finding the Fourth Proportional to 55,861.92, 77,092.56 and 30,716.64

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Solution

The fourth proportional to 55,861.92, 77,092.56 and 30,716.64 is: 42,390.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,861.92 : 77,092.56 = 30,716.64 : x
  2. Step 2: Convert to fraction form
    55,861.92/77,092.56 = 30,716.64/x
  3. Step 3: Cross multiply
    55,861.92x = 77,092.56 × 30,716.64
  4. Step 4: Simplify right side
    55,861.92x = 2,368,024,412.20
  5. Step 5: Solve for x
    x = 2,368,024,412.20/55,861.92
  6. Step 6: Final answer
    x = 42,390.67

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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.