Home / 73,916.64-102,005.28-40,383.36

Finding the Fourth Proportional to 73,916.64, 102,005.28 and 40,383.36

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Solution

The fourth proportional to 73,916.64, 102,005.28 and 40,383.36 is: 55,729.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,916.64 : 102,005.28 = 40,383.36 : x
  2. Step 2: Convert to fraction form
    73,916.64/102,005.28 = 40,383.36/x
  3. Step 3: Cross multiply
    73,916.64x = 102,005.28 × 40,383.36
  4. Step 4: Simplify right side
    73,916.64x = 4,119,315,944.14
  5. Step 5: Solve for x
    x = 4,119,315,944.14/73,916.64
  6. Step 6: Final answer
    x = 55,729.21

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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.