Home / 42,635.81-63,998.07-31,403.83

Finding the Fourth Proportional to 42,635.81, 63,998.07 and 31,403.83

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Solution

The fourth proportional to 42,635.81, 63,998.07 and 31,403.83 is: 47,138.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,635.81 : 63,998.07 = 31,403.83 : x
  2. Step 2: Convert to fraction form
    42,635.81/63,998.07 = 31,403.83/x
  3. Step 3: Cross multiply
    42,635.81x = 63,998.07 × 31,403.83
  4. Step 4: Simplify right side
    42,635.81x = 2,009,784,529.49
  5. Step 5: Solve for x
    x = 2,009,784,529.49/42,635.81
  6. Step 6: Final answer
    x = 47,138.42

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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.