Home / 55,415.05-76,476.67-31,541.72

Finding the Fourth Proportional to 55,415.05, 76,476.67 and 31,541.72

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Solution

The fourth proportional to 55,415.05, 76,476.67 and 31,541.72 is: 43,529.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,415.05 : 76,476.67 = 31,541.72 : x
  2. Step 2: Convert to fraction form
    55,415.05/76,476.67 = 31,541.72/x
  3. Step 3: Cross multiply
    55,415.05x = 76,476.67 × 31,541.72
  4. Step 4: Simplify right side
    55,415.05x = 2,412,205,250.43
  5. Step 5: Solve for x
    x = 2,412,205,250.43/55,415.05
  6. Step 6: Final answer
    x = 43,529.79

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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.