Home / 65,403.20-97,845.60-56,734.40

Finding the Fourth Proportional to 65,403.20, 97,845.60 and 56,734.40

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Solution

The fourth proportional to 65,403.20, 97,845.60 and 56,734.40 is: 84,876.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,403.20 : 97,845.60 = 56,734.40 : x
  2. Step 2: Convert to fraction form
    65,403.20/97,845.60 = 56,734.40/x
  3. Step 3: Cross multiply
    65,403.20x = 97,845.60 × 56,734.40
  4. Step 4: Simplify right side
    65,403.20x = 5,551,211,408.64
  5. Step 5: Solve for x
    x = 5,551,211,408.64/65,403.20
  6. Step 6: Final answer
    x = 84,876.76

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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.