Home / 42,892.80-64,352.22-20,702.04

Finding the Fourth Proportional to 42,892.80, 64,352.22 and 20,702.04

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Solution

The fourth proportional to 42,892.80, 64,352.22 and 20,702.04 is: 31,059.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,892.80 : 64,352.22 = 20,702.04 : x
  2. Step 2: Convert to fraction form
    42,892.80/64,352.22 = 20,702.04/x
  3. Step 3: Cross multiply
    42,892.80x = 64,352.22 × 20,702.04
  4. Step 4: Simplify right side
    42,892.80x = 1,332,222,232.53
  5. Step 5: Solve for x
    x = 1,332,222,232.53/42,892.80
  6. Step 6: Final answer
    x = 31,059.34

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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.