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Finding the Fourth Proportional to 72,328.40, 108,492.60 and 22,408.10

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Solution

The fourth proportional to 72,328.40, 108,492.60 and 22,408.10 is: 33,612.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,328.40 : 108,492.60 = 22,408.10 : x
  2. Step 2: Convert to fraction form
    72,328.40/108,492.60 = 22,408.10/x
  3. Step 3: Cross multiply
    72,328.40x = 108,492.60 × 22,408.10
  4. Step 4: Simplify right side
    72,328.40x = 2,431,113,030.06
  5. Step 5: Solve for x
    x = 2,431,113,030.06/72,328.40
  6. Step 6: Final answer
    x = 33,612.15

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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.