Home / 55,160.32-76,118.84-30,629.61

Finding the Fourth Proportional to 55,160.32, 76,118.84 and 30,629.61

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Solution

The fourth proportional to 55,160.32, 76,118.84 and 30,629.61 is: 42,267.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,160.32 : 76,118.84 = 30,629.61 : x
  2. Step 2: Convert to fraction form
    55,160.32/76,118.84 = 30,629.61/x
  3. Step 3: Cross multiply
    55,160.32x = 76,118.84 × 30,629.61
  4. Step 4: Simplify right side
    55,160.32x = 2,331,490,382.85
  5. Step 5: Solve for x
    x = 2,331,490,382.85/55,160.32
  6. Step 6: Final answer
    x = 42,267.53

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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.