Home / 43,156.31-64,712.39-19,762.70

Finding the Fourth Proportional to 43,156.31, 64,712.39 and 19,762.70

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Solution

The fourth proportional to 43,156.31, 64,712.39 and 19,762.70 is: 29,633.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,156.31 : 64,712.39 = 19,762.70 : x
  2. Step 2: Convert to fraction form
    43,156.31/64,712.39 = 19,762.70/x
  3. Step 3: Cross multiply
    43,156.31x = 64,712.39 × 19,762.70
  4. Step 4: Simplify right side
    43,156.31x = 1,278,891,127.48
  5. Step 5: Solve for x
    x = 1,278,891,127.48/43,156.31
  6. Step 6: Final answer
    x = 29,633.93

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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.