Home / 55,416.05-76,478.05-31,542.72

Finding the Fourth Proportional to 55,416.05, 76,478.05 and 31,542.72

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Solution

The fourth proportional to 55,416.05, 76,478.05 and 31,542.72 is: 43,531.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,416.05 : 76,478.05 = 31,542.72 : x
  2. Step 2: Convert to fraction form
    55,416.05/76,478.05 = 31,542.72/x
  3. Step 3: Cross multiply
    55,416.05x = 76,478.05 × 31,542.72
  4. Step 4: Simplify right side
    55,416.05x = 2,412,325,717.30
  5. Step 5: Solve for x
    x = 2,412,325,717.30/55,416.05
  6. Step 6: Final answer
    x = 43,531.17

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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.