Home / 55,780.78-76,969.73-32,811.65

Finding the Fourth Proportional to 55,780.78, 76,969.73 and 32,811.65

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Solution

The fourth proportional to 55,780.78, 76,969.73 and 32,811.65 is: 45,275.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,780.78 : 76,969.73 = 32,811.65 : x
  2. Step 2: Convert to fraction form
    55,780.78/76,969.73 = 32,811.65/x
  3. Step 3: Cross multiply
    55,780.78x = 76,969.73 × 32,811.65
  4. Step 4: Simplify right side
    55,780.78x = 2,525,503,538.53
  5. Step 5: Solve for x
    x = 2,525,503,538.53/55,780.78
  6. Step 6: Final answer
    x = 45,275.51

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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.