Home / 42,486.41-63,735.89-15,825.66

Finding the Fourth Proportional to 42,486.41, 63,735.89 and 15,825.66

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Solution

The fourth proportional to 42,486.41, 63,735.89 and 15,825.66 is: 23,740.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,486.41 : 63,735.89 = 15,825.66 : x
  2. Step 2: Convert to fraction form
    42,486.41/63,735.89 = 15,825.66/x
  3. Step 3: Cross multiply
    42,486.41x = 63,735.89 × 15,825.66
  4. Step 4: Simplify right side
    42,486.41x = 1,008,662,445.81
  5. Step 5: Solve for x
    x = 1,008,662,445.81/42,486.41
  6. Step 6: Final answer
    x = 23,740.83

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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.