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Finding the Fourth Proportional to 55,980.24, 77,249.88 and 30,824.88

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Solution

The fourth proportional to 55,980.24, 77,249.88 and 30,824.88 is: 42,536.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,980.24 : 77,249.88 = 30,824.88 : x
  2. Step 2: Convert to fraction form
    55,980.24/77,249.88 = 30,824.88/x
  3. Step 3: Cross multiply
    55,980.24x = 77,249.88 × 30,824.88
  4. Step 4: Simplify right side
    55,980.24x = 2,381,218,281.01
  5. Step 5: Solve for x
    x = 2,381,218,281.01/55,980.24
  6. Step 6: Final answer
    x = 42,536.76

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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.