Home / 48,931.70-73,345.91-19,308.78

Finding the Fourth Proportional to 48,931.70, 73,345.91 and 19,308.78

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Solution

The fourth proportional to 48,931.70, 73,345.91 and 19,308.78 is: 28,942.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,931.70 : 73,345.91 = 19,308.78 : x
  2. Step 2: Convert to fraction form
    48,931.70/73,345.91 = 19,308.78/x
  3. Step 3: Cross multiply
    48,931.70x = 73,345.91 × 19,308.78
  4. Step 4: Simplify right side
    48,931.70x = 1,416,219,943.55
  5. Step 5: Solve for x
    x = 1,416,219,943.55/48,931.70
  6. Step 6: Final answer
    x = 28,942.79

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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.