Home / 42,936.56-64,403.68-19,237.67

Finding the Fourth Proportional to 42,936.56, 64,403.68 and 19,237.67

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Solution

The fourth proportional to 42,936.56, 64,403.68 and 19,237.67 is: 28,855.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,936.56 : 64,403.68 = 19,237.67 : x
  2. Step 2: Convert to fraction form
    42,936.56/64,403.68 = 19,237.67/x
  3. Step 3: Cross multiply
    42,936.56x = 64,403.68 × 19,237.67
  4. Step 4: Simplify right side
    42,936.56x = 1,238,976,742.63
  5. Step 5: Solve for x
    x = 1,238,976,742.63/42,936.56
  6. Step 6: Final answer
    x = 28,855.99

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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.