Home / 49,447.40-74,141.20-19,425.68

Finding the Fourth Proportional to 49,447.40, 74,141.20 and 19,425.68

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Solution

The fourth proportional to 49,447.40, 74,141.20 and 19,425.68 is: 29,126.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,447.40 : 74,141.20 = 19,425.68 : x
  2. Step 2: Convert to fraction form
    49,447.40/74,141.20 = 19,425.68/x
  3. Step 3: Cross multiply
    49,447.40x = 74,141.20 × 19,425.68
  4. Step 4: Simplify right side
    49,447.40x = 1,440,243,226.02
  5. Step 5: Solve for x
    x = 1,440,243,226.02/49,447.40
  6. Step 6: Final answer
    x = 29,126.77

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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.