Home / 51,400.64-77,090.31-19,799.87

Finding the Fourth Proportional to 51,400.64, 77,090.31 and 19,799.87

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Solution

The fourth proportional to 51,400.64, 77,090.31 and 19,799.87 is: 29,695.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,400.64 : 77,090.31 = 19,799.87 : x
  2. Step 2: Convert to fraction form
    51,400.64/77,090.31 = 19,799.87/x
  3. Step 3: Cross multiply
    51,400.64x = 77,090.31 × 19,799.87
  4. Step 4: Simplify right side
    51,400.64x = 1,526,377,730.81
  5. Step 5: Solve for x
    x = 1,526,377,730.81/51,400.64
  6. Step 6: Final answer
    x = 29,695.69

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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.