Home / 77,662.41-107,045.07-54,972.30

Finding the Fourth Proportional to 77,662.41, 107,045.07 and 54,972.30

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Solution

The fourth proportional to 77,662.41, 107,045.07 and 54,972.30 is: 75,770.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,662.41 : 107,045.07 = 54,972.30 : x
  2. Step 2: Convert to fraction form
    77,662.41/107,045.07 = 54,972.30/x
  3. Step 3: Cross multiply
    77,662.41x = 107,045.07 × 54,972.30
  4. Step 4: Simplify right side
    77,662.41x = 5,884,513,701.56
  5. Step 5: Solve for x
    x = 5,884,513,701.56/77,662.41
  6. Step 6: Final answer
    x = 75,770.42

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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.