Home / 45,431.53-68,143.40-27,657.58

Finding the Fourth Proportional to 45,431.53, 68,143.40 and 27,657.58

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Solution

The fourth proportional to 45,431.53, 68,143.40 and 27,657.58 is: 41,483.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,431.53 : 68,143.40 = 27,657.58 : x
  2. Step 2: Convert to fraction form
    45,431.53/68,143.40 = 27,657.58/x
  3. Step 3: Cross multiply
    45,431.53x = 68,143.40 × 27,657.58
  4. Step 4: Simplify right side
    45,431.53x = 1,884,681,228.33
  5. Step 5: Solve for x
    x = 1,884,681,228.33/45,431.53
  6. Step 6: Final answer
    x = 41,483.99

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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.