Home / 45,780.42-68,776.16-43,888.75

Finding the Fourth Proportional to 45,780.42, 68,776.16 and 43,888.75

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Solution

The fourth proportional to 45,780.42, 68,776.16 and 43,888.75 is: 65,934.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,780.42 : 68,776.16 = 43,888.75 : x
  2. Step 2: Convert to fraction form
    45,780.42/68,776.16 = 43,888.75/x
  3. Step 3: Cross multiply
    45,780.42x = 68,776.16 × 43,888.75
  4. Step 4: Simplify right side
    45,780.42x = 3,018,499,687.68
  5. Step 5: Solve for x
    x = 3,018,499,687.68/45,780.42
  6. Step 6: Final answer
    x = 65,934.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.