Home / 74,815.71-103,245.63-47,958.21

Finding the Fourth Proportional to 74,815.71, 103,245.63 and 47,958.21

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Solution

The fourth proportional to 74,815.71, 103,245.63 and 47,958.21 is: 66,182.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,815.71 : 103,245.63 = 47,958.21 : x
  2. Step 2: Convert to fraction form
    74,815.71/103,245.63 = 47,958.21/x
  3. Step 3: Cross multiply
    74,815.71x = 103,245.63 × 47,958.21
  4. Step 4: Simplify right side
    74,815.71x = 4,951,475,605.12
  5. Step 5: Solve for x
    x = 4,951,475,605.12/74,815.71
  6. Step 6: Final answer
    x = 66,182.30

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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.