Home / 55,381.93-76,426.08-31,508.09

Finding the Fourth Proportional to 55,381.93, 76,426.08 and 31,508.09

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Solution

The fourth proportional to 55,381.93, 76,426.08 and 31,508.09 is: 43,480.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,381.93 : 76,426.08 = 31,508.09 : x
  2. Step 2: Convert to fraction form
    55,381.93/76,426.08 = 31,508.09/x
  3. Step 3: Cross multiply
    55,381.93x = 76,426.08 × 31,508.09
  4. Step 4: Simplify right side
    55,381.93x = 2,408,039,770.53
  5. Step 5: Solve for x
    x = 2,408,039,770.53/55,381.93
  6. Step 6: Final answer
    x = 43,480.61

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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.