Home / 55,910.80-77,141.64-38,895.94

Finding the Fourth Proportional to 55,910.80, 77,141.64 and 38,895.94

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Solution

The fourth proportional to 55,910.80, 77,141.64 and 38,895.94 is: 53,665.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,910.80 : 77,141.64 = 38,895.94 : x
  2. Step 2: Convert to fraction form
    55,910.80/77,141.64 = 38,895.94/x
  3. Step 3: Cross multiply
    55,910.80x = 77,141.64 × 38,895.94
  4. Step 4: Simplify right side
    55,910.80x = 3,000,496,600.94
  5. Step 5: Solve for x
    x = 3,000,496,600.94/55,910.80
  6. Step 6: Final answer
    x = 53,665.78

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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.