Home / 55,590.12-76,712.88-31,716.36

Finding the Fourth Proportional to 55,590.12, 76,712.88 and 31,716.36

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Solution

The fourth proportional to 55,590.12, 76,712.88 and 31,716.36 is: 43,767.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,590.12 : 76,712.88 = 31,716.36 : x
  2. Step 2: Convert to fraction form
    55,590.12/76,712.88 = 31,716.36/x
  3. Step 3: Cross multiply
    55,590.12x = 76,712.88 × 31,716.36
  4. Step 4: Simplify right side
    55,590.12x = 2,433,053,318.72
  5. Step 5: Solve for x
    x = 2,433,053,318.72/55,590.12
  6. Step 6: Final answer
    x = 43,767.73

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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.