Home / 42,792.30-64,194.58-13,212.66

Finding the Fourth Proportional to 42,792.30, 64,194.58 and 13,212.66

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Solution

The fourth proportional to 42,792.30, 64,194.58 and 13,212.66 is: 19,820.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,792.30 : 64,194.58 = 13,212.66 : x
  2. Step 2: Convert to fraction form
    42,792.30/64,194.58 = 13,212.66/x
  3. Step 3: Cross multiply
    42,792.30x = 64,194.58 × 13,212.66
  4. Step 4: Simplify right side
    42,792.30x = 848,181,159.38
  5. Step 5: Solve for x
    x = 848,181,159.38/42,792.30
  6. Step 6: Final answer
    x = 19,820.88

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.