Home / 55,680.32-76,839.84-30,529.52

Finding the Fourth Proportional to 55,680.32, 76,839.84 and 30,529.52

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Solution

The fourth proportional to 55,680.32, 76,839.84 and 30,529.52 is: 42,131.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,680.32 : 76,839.84 = 30,529.52 : x
  2. Step 2: Convert to fraction form
    55,680.32/76,839.84 = 30,529.52/x
  3. Step 3: Cross multiply
    55,680.32x = 76,839.84 × 30,529.52
  4. Step 4: Simplify right side
    55,680.32x = 2,345,883,432.08
  5. Step 5: Solve for x
    x = 2,345,883,432.08/55,680.32
  6. Step 6: Final answer
    x = 42,131.29

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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.