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Finding the Fourth Proportional to 80,038.62, 110,453.64 and 43,740.81

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Solution

The fourth proportional to 80,038.62, 110,453.64 and 43,740.81 is: 60,362.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,038.62 : 110,453.64 = 43,740.81 : x
  2. Step 2: Convert to fraction form
    80,038.62/110,453.64 = 43,740.81/x
  3. Step 3: Cross multiply
    80,038.62x = 110,453.64 × 43,740.81
  4. Step 4: Simplify right side
    80,038.62x = 4,831,331,681.05
  5. Step 5: Solve for x
    x = 4,831,331,681.05/80,038.62
  6. Step 6: Final answer
    x = 60,362.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.