Home / 42,692.06-64,046.30-19,318.50

Finding the Fourth Proportional to 42,692.06, 64,046.30 and 19,318.50

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Solution

The fourth proportional to 42,692.06, 64,046.30 and 19,318.50 is: 28,981.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,692.06 : 64,046.30 = 19,318.50 : x
  2. Step 2: Convert to fraction form
    42,692.06/64,046.30 = 19,318.50/x
  3. Step 3: Cross multiply
    42,692.06x = 64,046.30 × 19,318.50
  4. Step 4: Simplify right side
    42,692.06x = 1,237,278,349.96
  5. Step 5: Solve for x
    x = 1,237,278,349.96/42,692.06
  6. Step 6: Final answer
    x = 28,981.46

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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.