Home / 42,765.44-64,104.30-21,666.38

Finding the Fourth Proportional to 42,765.44, 64,104.30 and 21,666.38

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Solution

The fourth proportional to 42,765.44, 64,104.30 and 21,666.38 is: 32,477.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,765.44 : 64,104.30 = 21,666.38 : x
  2. Step 2: Convert to fraction form
    42,765.44/64,104.30 = 21,666.38/x
  3. Step 3: Cross multiply
    42,765.44x = 64,104.30 × 21,666.38
  4. Step 4: Simplify right side
    42,765.44x = 1,388,908,123.43
  5. Step 5: Solve for x
    x = 1,388,908,123.43/42,765.44
  6. Step 6: Final answer
    x = 32,477.35

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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.