Home / 72,938.64-109,408-23,022.64

Finding the Fourth Proportional to 72,938.64, 109,408 and 23,022.64

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Solution

The fourth proportional to 72,938.64, 109,408 and 23,022.64 is: 34,533.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,938.64 : 109,408 = 23,022.64 : x
  2. Step 2: Convert to fraction form
    72,938.64/109,408 = 23,022.64/x
  3. Step 3: Cross multiply
    72,938.64x = 109,408 × 23,022.64
  4. Step 4: Simplify right side
    72,938.64x = 2,518,860,997.12
  5. Step 5: Solve for x
    x = 2,518,860,997.12/72,938.64
  6. Step 6: Final answer
    x = 34,533.97

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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.