Home / 55,781.69-76,977.95-31,582.03

Finding the Fourth Proportional to 55,781.69, 76,977.95 and 31,582.03

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Solution

The fourth proportional to 55,781.69, 76,977.95 and 31,582.03 is: 43,582.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,781.69 : 76,977.95 = 31,582.03 : x
  2. Step 2: Convert to fraction form
    55,781.69/76,977.95 = 31,582.03/x
  3. Step 3: Cross multiply
    55,781.69x = 76,977.95 × 31,582.03
  4. Step 4: Simplify right side
    55,781.69x = 2,431,120,036.65
  5. Step 5: Solve for x
    x = 2,431,120,036.65/55,781.69
  6. Step 6: Final answer
    x = 43,582.76

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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.