Home / 55,933.28-77,187.76-30,782.76

Finding the Fourth Proportional to 55,933.28, 77,187.76 and 30,782.76

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Solution

The fourth proportional to 55,933.28, 77,187.76 and 30,782.76 is: 42,480.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,933.28 : 77,187.76 = 30,782.76 : x
  2. Step 2: Convert to fraction form
    55,933.28/77,187.76 = 30,782.76/x
  3. Step 3: Cross multiply
    55,933.28x = 77,187.76 × 30,782.76
  4. Step 4: Simplify right side
    55,933.28x = 2,376,052,291.02
  5. Step 5: Solve for x
    x = 2,376,052,291.02/55,933.28
  6. Step 6: Final answer
    x = 42,480.12

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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.