Home / 55,707.12-76,873.32-30,556.08

Finding the Fourth Proportional to 55,707.12, 76,873.32 and 30,556.08

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Solution

The fourth proportional to 55,707.12, 76,873.32 and 30,556.08 is: 42,166.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,707.12 : 76,873.32 = 30,556.08 : x
  2. Step 2: Convert to fraction form
    55,707.12/76,873.32 = 30,556.08/x
  3. Step 3: Cross multiply
    55,707.12x = 76,873.32 × 30,556.08
  4. Step 4: Simplify right side
    55,707.12x = 2,348,947,315.79
  5. Step 5: Solve for x
    x = 2,348,947,315.79/55,707.12
  6. Step 6: Final answer
    x = 42,166.02

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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.