Home / 49,956.60-74,934.90-13,020.60

Finding the Fourth Proportional to 49,956.60, 74,934.90 and 13,020.60

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Solution

The fourth proportional to 49,956.60, 74,934.90 and 13,020.60 is: 19,530.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,956.60 : 74,934.90 = 13,020.60 : x
  2. Step 2: Convert to fraction form
    49,956.60/74,934.90 = 13,020.60/x
  3. Step 3: Cross multiply
    49,956.60x = 74,934.90 × 13,020.60
  4. Step 4: Simplify right side
    49,956.60x = 975,697,358.94
  5. Step 5: Solve for x
    x = 975,697,358.94/49,956.60
  6. Step 6: Final answer
    x = 19,530.90

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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.